I learned it in a guild, but it takes the guild leader to open a workshop

I learned it in a guild, but it takes the guild leader to open a workshop, and it takes a lot of achievements. Each character can only have one workshop, which can be upgraded to 7 sections, and the others can be upgraded to 3 sections... Friends without gangs can go to the imperial palace to learn, but it costs a lot of money to learn there. Think about it yourself.