Holy Mother of God...

[Masterlegodude]

I think my mouse wheel can click to the sides, but it also has this button on the left side next to the left click, i set it to use the 3D window flip because it's cooler than the 2D one

[Ad Bot]

[Sentry]

When I push my mouse wheel left it copys. When I push it right it pastes.

[Epicduke]

I have side buttons on my mouse that does this.

[Plexious]

I have side buttons on my mouse that does this.

Same here.