I can't find the specific video at the moment as I think the method was just shown while he was actually cutting parts, but Peter Millard has a method of cutting narrow strips using the standard MFT drop-down rail set-up.
He sets a panel, with a square corner obviously, against the fence with the right hand edge of the panel spaced from the kerf in the table top by the width of the part to be cut and clamped down to the top. The material is then slipped under the rail, butted against the panel stop and the rail lowered to clamp the material. The cut is made, rail raised and the strip removed. If multiple pieces are required, just keep feeding the material against the fence (panel edge) and cutting additional strips.
I also remember a posting that showed a jig/fixture that was made using two strips; one relatively narrow to make a fence, and a second strip equal to the width of this fence plus the width of the rail and a little extra. The fence strip was glued on top of the other strip, the LH side of the rail butted against it and a cut giving the exact width of the rail made. In use, a spacer strip the width of the parts needed was butted against the RH edge of the fence, the material butted against the RH edge of the lower strip, offsetting the rail by the width of the parts to be cut. Butt the LH edge of the rail against the edge of the spacer and make the cut, giving a strip the exact width of the spacer.