On OS X FM15 but, from memory, this problem has been around a while.

In the Script Workspace when I try to edit the name of a script I get cast out of the editing process very rapidly. I click on the script name, it highlights but as soon as I start to type, no matter how fast, the cursor is ejected from the edit box before I can complete it.

I resort to typing whatever I want in the Notes app and using copy/paste.

This used to affect many more such edit boxes. I believe it is less now.

I ask, "Is it just me?", as I don't see others referring to this irritation and expressing frustration as it not being solved after being around for so long.

Maybe there is a trick I am missing.

While I'm on the subject of the Script Workspace I find I can't see the line or lines I have highlighted. They are selected. This is not so on my client's computer so maybe I have a funny colour scheme?

Right click the mouse while selecting the name, options are

 

Or you can double-click the script name on the top.

But I agree, this is weird.

Also, we found that clicking into a comment in FM 15 doesn't highlight the row anymore. It rather just puts the cursor up front.