This is in Glyphs 2.
I am trying to lock multiple components at the same time. Having selected them all, I find “Lock components” is only a contextual menu option if I right click directly on a component, and if selected only affects that one component. I think we should be able to “batch lock” components through the contextual menu.
(Along similar lines, I’m very gratified that I can “batch change source” by selecting multiple components and clicking on the component name in the info box. Locking should work that way too.)