I want to create request type that allow tenant to register asset (or send request to register assset), I edited request type "Register Computer" and create a form in form tab. Now what should I do to display the form for tenants? Generally, any guide is available for manage request types?
It is unlikely you will be create this request type yourself with your current experience level and no training.
However, I am currently working on such a solution which I can provide to you in future. I will keep you informed.