I guess you would have to disable or change that AMD hotkey if it is interfering. Unfortunately “Toggle Developer Tools” isn’t exposed as a command, so you can’t remap the hotkey in Obsidian. In MacOS it shows up as a menu item, but as I understand, there is no menu in Windows or Linux.
I can’t really imagine what you mean when you say “highlights title markers … displays in the bottom right corner”. I wonder if you could sketch what your idea would look like?
Is it sort of like a live table of contents? Because there is the core plugin “Outline” which shows a panel with all the hierarchical headers in your note as links.
(Sorry if I am misunderstanding.)