I read THIS answer that was really good on how to change the keyboard layout with Left Ctrl + Left Shift, but when I use
Ctrl Shift C (to copy on terminals)
and Ctrl Shift V (to paste on terminals)
the keyboard layout changes and I cannot perform the copy/paste action. In Elementary Luna, which I had previously, It would only change the Layout ON KEY UP. Hence, it would not conflict with Ctrl + Shift + (whatever key). And on Freya, according to that answer, it is ON KEY DOWN.
Is there any chance to make it work like Luna, and the key combination Left Shift + Left Ctrl take effect only ON KEY UP?