Autofilling containers

[stachursky444]

Hello.
Currently I use DearPyGui to write a little dev app for an embedded device. In my application I wanted to use a container with several widgets (mainly plots) filling all accessible space in it. I tried to set child widgets to have -1 size, but it caused that first item took whole surface, preventing others to come on a screen. Then I wrote my own resize handler to resize children on parent's resize, what works pretty well as long as parent's dimension isn't set to -1. What I noticed is that if one of the dimensions of the parent (width or height) is set to -1, then all its children get this value (-1 instead of recounted share of parent's surface) what causes the first child to claim all surface of the parent.
Summarizing:

1. How to prevent children from inheriting -1 dimension from its parent?
2. Why when there are many children (of the same container) with -1 dimension, space isn't divided between them?

Thanks in advance!