How to create sidebar?

  • add the border and the panel to a horizontal box, you can use another horizontal box inside the border to house other items. Or replace the border with just a horizontal box if no background is needed. The example you have a is a bit unclear.
  • the wPanel is set to auto size
  • the horizontal box in the canvas no longer Sizes To Content (see previous posts) - the desired functionality changed since the first post request
  • the size box here may not be needed if you fill the border with some other content

I can not create the “on mouse button down” and “Return node”.

Any user widget that you create can:

  • highlight in the Panel Entry if you’re after the effect in the original post:

image