[Feature Request] More intuitive tab splitting

[WX580]

I think the current system for splitting tabs needs changing. My idea is that whatever tab is currently in focus and a tab you right click on and select the split option on should be split instead of both tabs needing be selected, this wouldnt replace the current system but would simply be an addon to it
Along with this change I feel you should be able to add tabs to already split tabs the same way instead of having to unsplit your current tabs and creating a new split with the 3rd tab in addition to the other 2