How to stop password prompts?

[zenzen]

I think @Forpli managed to get this one done here:

Filemanager in gnome

I would be interested to know whether the number of password prompts depends on the file manager or only on the desktop environment. I find it terrible how often I am asked for my password within a few minutes when using nautilus in gnome. For every file I want to open with root privileges I am asked separately, and then usually twice if I want to edit/move/copy/remove it. Since my VM is extremely slow with 4 GiB, I lose root access in between and have to enter the password again. This is very …