Feature request: Subflow to open next to the current flow

Hello, to come back to you so quick
(I found out it is better to start a thread for every question instead of a list of questions)

If I double click on a subflow the flow opens at the end of all other tabs. During development it is necessary to switch back and forth the subflow and the parent flow. It is very difficult to drag the subflow next to the parent flow when you have many tabs.

So I like to ask if it is possible to let the subflows open in the next tab right by the current flow?

I also could appreciate a little different appearance of subflows compared to "normal flows". Perhaps using an italic font is already sufficient

(it would be cool if the user can color the tabs like in excel but that is only cosmetic image