Now always use grabbing when dragging.

Defaults to 4 when re-activated. This is easier to code.

- Remove fieldsets
- Change structure visuals for combo buttons

This way the props do not show in the prop-panel.

Allow for direct adding of image options.

- Remove simple variant and integrate it into the normal one with added 
switch for less controls available and smaller size.

#644

#662

Images were not showing at all.

#652

#667