How to add new shaders?

I've installed the program to use with flight simulator but in the initial install, i only selected the shaders I would use. Maybe 4-5 only. But to try other shaders now is a little difficult. I dont see any provision in the program to add more once its installed. Perhaps a re-install each time? Or should I have just installed every single shader from the initial install then selected what i wanted to display inside flight simulator?

i've downloaded the reshade-shaders master folder but if i move any shaders into my install folder, then the option box (shift F2) is unresponsive and I can't selct anything. In fact, now I've removed the shader I wanted to try and still that box is unresponsive and nothing is selectable.

Any help greatly appreciated.
Boxhead.

Easiest way is to run the setup tool again and select all the shaders you want this time. Your settings and presets won't be affected by a reinstallation.