How are the m+ select components intended to work?

i have a hard time understanding the “m+SelVert” component.
when setting the boolean toggle to “true” i am prompted to select the vertices in rhino. this works fine and makes the component output the points and indices.
when closing and reopening the grasshopper file, the component contains no more input info and rhino command line again prompts for vertex selection.

is this intentional? is “m+SelVert” meant as a tool to retrieve and temporarily output vertex info?
for my purposes, the component is not very useful, if the vertex selection is not sticky.

thanks in advance to anyone shading some light on this. (140.9 KB)