Help with cubic

[Aladalar]

Hello,

I don't know if you have these topics answered and I'll be glad for help or redirection which will result in my asks/problems. MC version which will

1) I'm used to working in Blender, not cubic and it's important for my performance I need some tutorial or hints on how to correctly transform OBJ/FBX etc format to JSON file

2) I need to make models which are not block dependent which means I need to make a model of for example 2 block statue from one block

3) It's possible to make blockstate in cubic or its manual writing

4) It's possible to edit a mob model or only a texture

Thanks for any help I don't make RP this since ver 1.8
Aladalar