It would by nice to have a chance to open/close all insert Effect Control Panels on a selected track by one click or at least have a key command for this purpose.
The best implemantation of such a function would be an option within Preferences that allow to tick a box ‘Track Selection triggers opening of all corresponding Effect Control Panels’
So far there is only Alt+Shift+click on ‘e’ that opens all the insert Effect Control Panels on a Track but only Open, not Close. And it is not possible to make it as Key Command. There is also no way to make any Macros workaround. Mainly because of poor Focus commands.