If your SAPGui EDITING options are DISABLED and you wonder why? Then you should check it from following selection area first…

Open your SAPGUI logon screen and its probably looks like the following screen

Then you should check the selection status below ;

Go to  SAP GUI Options Page –> SAP Logon Options –> General

“Disable editing of connection entries”

If already checked then you have to UNCHECK this selection.

Exit with APPLY / OK

Now try again via opening SAPGUI Logon Screen

You should see all editing buttons are enabled.