I made this post in the CAW forum on this site some time back and decided to put it on my page for people who work with CAW.

You can place spawners in CAW from any EP that you have installed. Most (not all) of the spawners listed below are already in CAW. Other spawners you'll need to make available in CAW using a .package file before it will be listed in CAW. For help with that, check out ModTheSims' CAW forum here.

Finding the Spawners in CAW

Once in CAW, in the Metadata box, expand the Game Objects, Environment tree lists (little crosses) so that their contents are listed below them. All of the spawners are in this section. (Note: there is a section called Spawners under Game Objects, but there is utterly nothing in it). The list is alphabetical but this is almost useless unless you know what name the desired object or spawner has been given by the developers. Quickest way is to write down names on a piece of paper as you peruse CAW so you'll know how to find an object at a later time.

In general, spawners in this list will show up exactly as named in the following list. The number of spawns that will occur per each spawner is uncertain unless specified otherwise.

You must have installed the expansion pack that the spawner belongs to before you can see it in CAW. I myself do not own every EP so some of the spawners you are looking for may not be on this list.

Harvestable Plants

All Harvestable Plant spawners will show up in CAW Render Panel as a mound of dirt, but will show up correctly in the installed world in-game. These do NOT need to be placed on a lot. You can put them in any navigable place where sims can get at them to harvest. 

"Autosoil:<name of plant>" - plants a harvestable plant for the specified plant or tree.

Here is a list of all the possible grapes from France listed alphabetically as shown:

Avornalino Grapes

Cherimola Blan Grapes

Cranerlet Nuala Grapes

Granadilla Fran Grapes 

Meloire Grapes

Renoit Grapes

Other Autosoil Spawners listed alphabetically as shown:

Cherries

Harvestable Kelp

Plums

Pomegranates

Pomelos

Beetles

"Beetle Spawner - <name of beetle> (N)" - spawns beetles only of type specified. The number N is probably the number of times the beetle will spawn in that place. The "Beetle Spawner - All"  might spawn only the beetles that are from EPs that are NOT WA, but not sure about this.

"Beetle Spawner - <name of beetle> (N)" - spawns beetles only of type specified. The number N is probably the number of times the beetle will spawn in that place.

"Beetle Spawner (country name) - <name of beetle>" - spawns beetles only of type specified from a specific WA country. Not sure if beetle only spawns once or multiple times.

Other beetle/insect spawners listed alphabetically as follows:

Mosquito Spawner

Spider Spawner

Termite Spawner

Butterfiles

"Butterfly Spawner - <frequency> N" - butterfly spawners that specify how long butterflies of various types will spawn in that place (High=high frequency, Low=low frequency, and so forth). The number N in this case is simply ordinal, I think, and does not have to do with how many times the spawn occurs. If I want bflys spawned by frequency, I use some of all the numbers just to make sure that all possible types of bflys are represented in my world. Not sure if these are just BG bflys only, or all non-WA bflys.

"Butterfly Spawner - <name of butterly> (N)" - spawns butterflies only of type specified. The number N is probably the number of times the bfly will spawn in that place.

"Digsite Spawner - <country name> - <frequency>" - spawns a digsite where sims can dig up treasure. Only spawns digsite items of the specified country. The frequency is High to Low (High=high frequency, Low=low frequency, etc). There is also a "Digsite Spawner - Fragments" and "Digsite Spawner - Generic" which probably work as expected.

Fish Spawners

"Fishing Spawner - <country name>, <type of fish> N" - spawns WA fish by country name and type of fish (type of fish is either Common, Uncommon,Rare, or some specific fish name). N, if present, is probably an ordinal number that does not have to do with the number of times a spawn will occur. Fish from Egypt will also specify Oasis or River. "Fishing Spawner - France, Frog Pond" spawns only Frog Pond type of fish from France.

"Fishing Spawner - <water type> <type of fish> N" - spawns non-WA fish by water type and type of fish (Water type is either Lake or Ocean. Type of fish is either Common, Uncommon, Rare, or some specific fish name). N, if present, is probably an ordinal number that does not have to do with the number of times a spawn will occur. 

"Fishing Spawner - Deathfish/Graveyard" and "Fishing Spawner Robot Fish" work as expected. 

Other Fishing Spawners are listed alphabetically as shown:

Kissing Gourami Spawner

Sea Sludge Spawner

Sewer Trilobite Spawner

Surface Shark Spawner (spawns visible shark fin only)

Will-O'-The-Wisp Spawner

Gem Spawners

"Gem Spawner - <name of gem>" - spawns only the type of gem specified.

"Gem Spawner - <type> (Nx)" - spawns, I think, a type of gem classified as "High, Medium, or Low". Apparently this is the value of the gem, but not certain about this. The N is the number of times a random gem of that type will spawn in that place. These may be only BG gems, or all gems except WA, or all gems; not sure.

"Gem Spawner (country name) - <name of gem>" - spawns only the gem named from the specified country.

Insect Spawners

"Insect Spawner - China" - spawns insects used in the China tombs.

"Insect Spawner - Tomb" - spawns insects used in the Egypt tombs.

Junkyard Spawners

"Junkyard Spawner N" - spawns a random junkyard object such as an old oven. N is an ordinal number and not the number of times the item will spawn.

Metal Spawners

"Metal Spawner - <type of metal>" - spawns only the type of metal specified.

"Metal Spawner (country name) - <type of metal>" -  spawns only the type of metal specified from the country specified.

"Metal Spawner (country name) - Mix High" -  spawns a random gem from the specified country. High probably indicates high frequency.

"Metal Spawner (country name) - Mix Low" - spawns a random gem from the specified country. Low probably indicates low frequency.

Other Metal Spawners are listed alphabetically as follows:

Carbon Steel Spawner

RGM Spawner - Egypt

Smithsonite Spawner

Tungsten Carbide Spawner

Meteor Spawners

There are 4 Meteor spawners listed as "Meteor Spawner - <size of meteor>" where size is either Huge, Medium, Small or Small/Medium.

Sea Life Spawners

Note: I have never used these spawners myself so this is only a guess based on how the other spawners I've used work.

"Sealife Spawner - High N" - spawns sealife from IP at a high frequency. N is an ordinal number and does not specify number of times the spawn will take place.

"Sealife Spawner - Low N" - spawns sealife from IP at a low frequency. N is an ordinal number and does not specify number of times the spawn will take place.

"Sealife Spawner - Medium N" - spawns sealife from IP at a medium frequency. N is an ordinal number and does not specify number of times the spawn will take place.

"Non-collectable Sea Life Spawner" - spawns a random non-collectible sea life from IP.

"Underwater Shark Spawner" - spawns an actual underwater shark.

Seed Spawners

There are various seed spawners that are listed as follows: 

"Seed Spawner (country name) N" - spawns a random seed from the specified WA country. N is an ordinal number.

"Seed Spawner (type of seed) N" - spawns a random seed where type of seed is either Common, Rare, Special, or Uncommon. N is an ordinal number.

"Vampire's Eye Spawner" - spawns the Vampire's Eye. 

"Wildflower Spawner" - spawns a random wildflower. Note: these will get spawned in-game anyway if you have Seasons installed.

Small/Large Animal Spawners

Note: I personally don't recommend the use of these spawners because if you have Pets installed these items seem to spawn everywhere anyway. Using the spawners seem to make these lesser animals over-ubiquitous in the game, IMHO.

There are NO specific spawners for adoptable pets (cats, dogs and horses) - these will spawn randomly by the game if you have Pets installed. There are various small or large animal spawners (ie - befriendable pets) that are listed alphabetically in the Environment list as follows (N is ordinal):

Large Bird Spawner N

Lizard Spawner N

Rodent Spawner N

Small Bird Spawner N 

Snake Spawner N 

Turtle Spawner N

I believe I have listed every spawner for each EP that I have installed. Apologies in advance for any missing.