Cloth with weights

Hi! I need a help, i decided to add clothes with weights, like i've did it earlier (and it's work) and get a problem. In window "Object" i can't see my FBX file like in "Resources" and so i can't add a 3D body tracking to it and get skelet's hierarchy in "Inspector".

1st photo - like it was

2nd and 3nd - now

I can't uderstand how can i add clothes with weights now, only with "Full body mesh" now? But i don't like "Full body mesh" method because i can't regulate weights(((