I see the example I mentioned the other day wasn’t enlightening (again, horse hockey or ?)
so let’s try it less juicy (or more alchemistic ?)
there would usually be a main sizer for a GUI page (Frame) constituting the graphical concept (without concept 
) and sort of inside all the controls are placed (of course wrapped by an appropriate sizer to make it fill the space)
luckily there are only a few of them, just like the data types of sqlite, and the number of parameters are very small and almost identical
play around with them & enjoy how nice they do their duty 