LXDE and KDE at the same time

[oui]

Hi

I am in Ubuntu 17.04.
Installed are both Kubuntu and Lubuntu (as well as divers other Window Managers like enlightenment, blackbox etc.)

At the control bar at the bottom of screen, LXDE proposes icons for applications I am not really accustomed to use especially PCmanFM. I would prefer DOLPHIN or ROX-filer.

How to change that?

Kind regards

[Rex Bouwense]

I am not sure what you are asking. Dolphin is the file manager for KDE distros. Rox-filer is the file manager for the ROX desktop environment and used to be used in Xubuntu until Thundar became stable. I do not believe that it is currently being developed. PCManFM is the default file manager for LXDE systems like Lubuntu.