Custom Activity Drop Activity here field?

I want to make an activity provided by UiPath within my Activity to be added in UiPath Studio.


How can I create a custom activity so that I can drag and drop it?

Please see

I have checked the link you wrote down. But the link only explains how to build the module.
The way I want to do this is to plant the module provided by UiPath in the module I created. I want to create a module that works like a For each module or a Sequence.