Cloth with weights

Options

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
https://drive.google.com/file/d/18E8VKwxFvUdldB8cSOw9kn_Lg9EC51Z1/view?usp=drive_link

2nd and 3nd - now
https://drive.google.com/file/d/1yPvmUj-PQGQAnCQcRtSBNVwRqxzANrfZ/view?usp=drive_link
https://drive.google.com/file/d/16XAY3YjWylIGE5oEHX2ef5zzgnuajXBR/view?usp=drive_link

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(((