I use linux on my notebook. My touchpad has two buttons - left and right. In order to emulate the middle mouse button i should to press both buttons simultaneously.
Is it a way to emulate this with any keyboard shortcut? Shift+Ins and Ctrl+V work not always, i wish to emulate exactly the "paste with middle mouse button" X feature

i've never heard of a way of doing this i'm afraid, because the middle-click paste function would only ever be listened for on the mouse device... i couldn't find anything on google either unfortunately...