Dynamically change Universe joins

How to Dynamically change the universe joins based on user response (i.e. using @prompt function)?

Create the universe code like that.

('I' = @Prompt('In or Out Worker?:','A',{'I','E'} ,Mono,Constrained,persistent,{'I'})
AND
ABC.XYZ=PQR.XYZ
)
OR
( 'I' <> @Prompt('In or Out Worker?:','A',{'I','E'} ,Mono,Constrained,persistent,{'I'})
AND
ABC.XYZ!=PQR.XYZ
)