Hello!
Unfortunately, we don’t have a way to change the angle of the label. We have been working on a command that will do that, but it is not released in the beta version yet.
If you search the example files for ‘label’ you will find one example of a variable label size, but these are discrete based on a variable. The command we are working on would be able to variable the label size continuously.
Sorry I don’t have a better answer for you now!