Hello. 
I have a macro that show me all assembly files and number sequential and after that show a list filtered, removing the duplicate files, just from the list.

This is what i get:

1. 11111 - Fundo|Default<As Machined>
2. 11111 - Corpo|Default<As Machined>
3. 11111 - Topo|Default
3.1. 11111 - Clamp|DIN DN 150 - AISI 316L
3.2. 11111 - Junta Clamp|DIN DN150 - Silicone
3.3. 11111 - Abraçadeira clamp|DN150