QTCreator store group widget unused and not see it on qtcreator windows app spaces during coding

[gfxx]

I often change the same interface with the same program, sometimes I use the same functions and sometimes not. Deleting all the calls and signals and groups of widgets seems little sense to me ..... however having all the "old" widgets visible on qtcreator is annoying ..... is there a way to avoid displaying them in qt creator without delete them?

I'm not talking about compiled .... in that case just tick the appropriate checkbox or insert a setVisible(false) ....