Extendability of Properties Editor with Custom Activities SDK


I have a question regarding the extendability of the UIPath Properties Editor for Activities. I know that I am able to create custom activities via the Activities SDK for Visual Studio and therefore adding the properties needed for my custom activity there. It is also possible to add more advanced input / UI capabilities than just input fields, radio buttons etc.? I couldn’t find any documentation about this.

I think about adding a button into the properties editor and then doing stuff like opening a Modal etc. Any help (whether its possible at all, examples, documentation) would be really appreciated!


To extend the question a bit: Is it possible to extend UIPath Studio except from creating custom activities?