How do you get a Schrade pocket tool to release a latched blade?

I recently obtained a 2nd hand Schrade tool (kind of like a Leatherman). It opens up into a needle-nose plier, but there are also several tools (scissor, knife blade, etc.) that will unfold out of the handles. When one of these additional tools is unfolded from the handle all the way, it latches extended. I have not figured out how to un-latch them without using a separate tool to force the latching mechanism to un-latch.

Needing to carry a separate tool for un-latching kind of defeats the advantage in having all those tools in one folded up pocket tool. Am I missing a secret release?