I would like the use the beta_expander.
Naïvely, I would like to have the code “inside” the beta_expander to be executed only when the beta_expander is expanded.
I would also like to check is some beta_expander is collapsed.
And I would also like to collapse/expand a beta_expander programmatically.
What can be done from my dreams?
Most important to me is the first dream.
Thanks for your suggestions,