Miro Starter Questions! Please help if you can, you'll be much appreciated!

Hey guys, 

I have a few questions I can’t find answers to in the Help Section. I’ve included an explanatory Loom for visual-aid

1. How to animate a particular flow within a workflow during Editing and/or a Presentation? Failing the ability to Animate, how to highlight/show 1 or a few selected flows within a workflow and hide/unhighlight the others to make it clearer when editing/presenting?
2. How to set the width of all lines between shapes to the same width? like ‘set shape width’ or something
3. How to set the height of all lines between shapes to the same height? like ‘set shape width’ or something
4. How to Toggle (Show/Hide) Sub-layers/levels of shapes within Parent Shapes during Editing and during Presenting?