I would try this in the action.
...rather than GetFieldSelections(). That function will not give you the correct format for transferring into another selection.
What you want to be able to select is something like this
...GetFieldSelections() will give you something like this
Value1, Value2, Value3
Hope this helps.
No problem at all.
Yes, if they have spaces they need to have double quotes I believe.
It gets a bit messy, but you could use something like this...
Concat("Value With Space"|Value|Value|"Other Value With Space")
So as an expression, if you do this...
...it should work.