If you just want to get a few options into a drop-down menu, you can kinda do a workaround like this:
Say you want to be able to have a menu populated with the words:
hello world
goodbye
another option
57
Create four nulls and rename them hello world, goodbye, another option, 57.
On a layer of your choice, add an Expression Controls > Layer Control. This becomes your pop-up menu, where you can select “hello world, goodbye, another option, 57”.
When you need to access that menu choice in an expression, use:
effect(“Layer Control”)(“Layer”).name
For example, if you’ve chosen layer “57”, the expression:
effect(“Layer Control”)(“Layer”).name*2
will give you 114.
Don’t know if this helps your workflow, but it was interesting (for me, anyway!) to see that this theory actually worked.
– Paul