EDIT

After creating a new tree the focus is set to this tree, the focus on titlecache is still missing.

Now also the focus is set to the titleCache, please review.

Works as expected so we can close the ticket.

I only wonder if it can be further improved. Currently you have to delete the generically created tree name which is cumbersome.
Maybe we should implement it as in other places with a dialog requesting the tree name. This seems to be more reasonable as there should always be a tree name and also it does not need to be parsed somehow (like titleCaches for names, taxa or specimen).
What do you think?

Title dialog is available, please review.

As mentioned in #9337 already, now, having the dialog, we do not need the focus setting anymore or better we should do it differently. See comment #9337#note-67 for details.

This works now as expected.