I looked the ram up.
http://www.smcpneumatics.com/replace...-CQ2-E.pdf.pdf

I know those from work.
Those ain't easy to customize. If you drill out the port, you'll get the hole past the seal of the piston, ripping it with the first action.
The end caps themselfs are very thin and are not strong enough to survive extra holes.

The body isn't adaptable for more inlet holes, as only 1 side is thick enough to have thread in it.

The short stroke makes it even more difficult. With a longer stroke you could fit spacers inside, to avoid the hole-seal interference.