Wireframe mode 2.8

Thanks for your great shows Pablo, I watch one today..just a question..In wireframe mode, I want to move one object into another (superimpose). I need to see both objects, while moving one. So, it allows me to select all objects, but if I try and select and move one object, it selects it and the others disappear.. hmmm, what's wrong here, I need to see both? best regards Mike.