Re: how can we dynamically use the value entered in one property in blueprint to decide whether to show another property or not? I want to do it without using the xaas blueprint.

To dynamically change what gets presented as far as different fields go, that requires XaaS. If all you want is for the answer to a boolean to influence values which are presented in future fields, that doesn't require XaaS and can be done strictly with custom properties connected to vRO actions.