thank-you  I'll try sudo I'm assuming not using the <  > keys though the whole file path yea?
I have to learn linux better sorry.

There is no reason to use sudo *at any time* during Pianoteq installation or execution. Certainly not if you are not sure what exactly are you doing. Just copy the Pianoteq.so file into /home/[yourname]/.vst directory as a normal user (NOT using sudo). That's all. Then configure your DAW to look for plugins in this directory (unless it's not already configured to do so).

and thanks delt I could easy try that too.
Thanks and sorry for the belated response took me a while to check
thanks again

my KX Studio system will not allow my to just drag and drop the LV2 and SO (VST) plugins to my plug in list because it's inside of my root folder

There is a good reason for not letting you mess with those folders. If possible, keep all your VST plugins in a directory accessible by you. The usual choice is /home/[your username]/.vst/

Then add that directory to a list of VST directories to be scanned by your DAW.

You can do it at the terminal using

sudo cp <source> <destination>

or you might find a "File Manager (superuser)" or equivalent entry in the systems applications menu for doing it via the GUI.

Or you can try

sudo dolphin

from the terminal to run the graphical file manager "dolphin" with admin (superuser) privileges, assuming KXStudio uses Dolphin as file manager for its KDE front end. If not then replace "dolphin" with whatever is appropriate.