Show or hide entities (via menu) conditional

[shalmaxb]

Hello,
is there any possibility to hide or show a custom entity by condition?

What I would like to achive is the following:

I have two entities for different contracts.
Can I show either of them depending on a certain value given or not?

Or is there any other idea to make it possible to use one contract only, if a certain value in another entity is met?

[eymen-elkum]

Hello, I wonder if dynamic logic can help.