Shortcut to open a file from File Tree or Open a new file in the same window (Linux) ?

[sgon00]

Hi, What is the shortcut to open a file from the File Tree or How to open a new file (Ctrl+P) in the same window?

Right now, Ctrl + P will open a new file in a new window. The new window approach is very slow. I can not suffer any slowness. Since no tab support in Linux, open a file by clicking a file in the File Tree is the only fast solution so far. But I don't like to use mouse and searching a file from a thousand files in the file tree is not doable.

Thanks a lot.