With the 5.7 update I noticed a new “Add Component” button in the detail panel of widgets selected in the Hierarchy of the Designer tab.
I couldn’t find anything related to this anywhere, not even in the release notes. I decided to dig around a bit and found the following options when clicking “Add Component”.
In their respective C++ classes they’re based off their Slate counterparts, so that means that others can be made into components with the proper knowhow. My questions are:
- Is there any official documentation for this?
- By the looks of it, these UIComponents just work around having to wrap individual widgets in the hierarchy and add the wrappers as components to each widget. Does that mean they’re only a convenience feature so that we can keep a cleaner hierarchy? or am I overlooking something?

