In the simplest respect this is a lazy contraction of this:
FlowView add some features to this setup.
| parent | 
 Parent widget.  | 
| bounds | |
| margin | 
 ...  | 
| gap | 
 ...  | 
| windowTitle | 
 Title of the window.  | 
Start a new row.
The maximum space that is left, starting at the current cursor position.
The area used so far, rounded up to the nearest rectangle plus margin.
Insert a sub flow view into the current view.
| func | 
 (describe argument here)  | 
| bounds | 
 (describe argument here)  | 
Insert a sub composite view into the current view.
| func | 
 (describe argument here)  | 
| bounds | 
 (describe argument here)  |