Menus > ObjectDisplay > Template

ObjectDisplay > Template

Switches the picked object between normal and templated, where you can see and snap to the object, but not pick it.

See Difference between meshes and polysets

See Use objects as templates

See Operate on all the objects in a layer

Templating is useful to "get objects out of the way", and for creating reference or construction objects that you can see without interfering with the modeling tools.