Creating plugin - expanding payload tab + custom pop up message window


I’m working on creating a plugin, which will
*add seperate tab alongside “Quick”, “Actions”, “Scripts” tabs with payload bay indicators working with Mavlink messages,
*make warning window pop up on certain Mavlink message.

Have uploaded an attachment, hope it’ll clear things up.

I’ll be glad if anyone point where, in the MP code, those tabs are implemented, so I can sort out how it’s built.
Of course every tip will be much appretiated!

Thanks in advance.

Tabs are implemented in

Hello, curious if you ever got this to work, @Bart4S? Thank you!