A trim assembly securable in a window frame includes a track on which a sliding window is supportable, a latch insert including a plurality of latch openings, and a latch mechanism securable to the sliding window adjacent the latch insert. The latch mechanism is displaceable between an extended position and a retracted position and includes a lever connected with a latch tab. In the extended position, the latch tab is positioned in a selected one of the latch openings. The latch mechanism is biased toward the extended position. The spacing of the latch openings provides for essentially infinite open/close positions.