As @Tibbs stated — you’re more than welcome to do so, we are open source.
I can go ahead and submit a request for this feature, but I’m not convinced that it will be prioritized very highly.
Just to reiterate, you can currently open your bookmarks in a new tab by:
- Click on the bookmark using the mouse-wheel click option, if your mouse supports it
- Holding
Ctrl(Commandon macOS) and clicking on a bookmark - Right-clicking on the bookmark, then
Open in new tab