I find myself in need of an "auto-complete" option for the tokens, so I decided to create my own. I hope this helps others with the same issue.
I got the full list of tokens by running this macro, so I believe it's updated. If not, please let me know if any token is missing.
Token Prompt.kmmacros (23 KB)
This is that moment where I can hate you and thank you at the same time... haha
Thanks for sharing this. I wasn't aware of this 
I guess I needed to create this macro and share it here for someone to share that valuable piece of information 
So here are the others you might be unaware of
⌃⌘A - insert an Action (in a macro)
⌃⌘T - insert a Token (in a field)
⌃⌘V - insert a Variable (in a field)
⌃⌘F - insert a Function (in a field)
⌃⌘W - insert an ICU Date (in a field)
I use the one for the actions all the time, but didn't know about the other ones, especially the token, which is super useful for my workflow.
The one for variables, it would be great if the list could be divided into 2 groups, where the top group would be the ones already in use in the current macro, then a divider with the list of all the other macros. But I can see how this can be useful moving forward.
Thanks for sharing.
By the way, I don't know if you know how to fix this:
I use BTT (Better Touch Tool) to assign different shortcuts to KM, because when I tried using KM itself, it was a bit inconsistent.
I can assign a different shortcut to Insert Variable/Action/Funcion by Name, but for some odd reason, it doesn't work for Insert Token by Name.
This is the BTT window:
I checked the text and it's correct. Any idea why KM isn't recognizing this?
I don't use BTT so can't help, sorry.
This seems to be an issue on KM side, because if I use the exact same shortcut in BTT to trigger Edit;Insert Action;By Name... it works. The same for variable, function, etc.
So by just changing the word Action to Token is enough to make it stop working.
Weird...
I decided to go with the System Preferences > Keyboard route for this.
This was still useful to me to break things out quickly. I was looking for something that had all the tokens by groups that I could see what they return quickly. Thanks for sharing. I feel like you quite frequently doing something the long way only to findout there is a better way. I guess that is life haha. Always a challenge to know the balance between doing and learning.
If it is of any use to anyone else here are all the Tokens currently in Keyboard Maestro 11.0.3. There are 165 examples listed in the indivual categories and 166 in the All Categegory. I counted multiple times so I am not sure what is the extra one. Of course you can have infinant possibilities on next widow and previeous applications and the like but I only listed the Tokens that are in the menues here.
To put them to good use of course is the next option but hopefully this at least gives people quick vissible way to see what the results return based on your current setup. Also my appoligies if you are on a laptop since I assigned them all to the F15 key. If there is a way to select all of them and change them at once for the conflict pallet I would love to know.
AAA - Referenced Token Macros.kmmacros.zip (22.4 KB)
I really wish the conflict pallet was scrollable but hopefully you can get to where you want by looking in Keyboard Maestro as a reference of how they are grouped.
