You could try using the command line to enter a line number - press escape and type the line number.
Thanks Graeme! I did not know this could be done. I'll use it from now on instead of Ctrl-J.
But I still think that SlickEdit should be modified so that this dialog box has the same behavior in Windows vs. Linux.
On Linux, the text box does have focus, but the contents of it are not highlighted/selected, whereas in Windows the contents are highlighted/selected.
So for example, if I am currently on line 335, and I press Ctrl-J, it shows 335 in the dialog, but not highlighted in Linux (but is highlighted in Windows).
Then, if I want to go to line 12, if I wanted to just type 12 without doing anything, the textbox will show 12335 (inserting it before the current line #).
On windows, the 335 is highlighted so as soon as I start typing its gone and replaced by whatever I'm typing.
I'd rather have the windows behavior, but I won't be using Ctrl-J anymore and will use "Esc" and your method.