How to restrict customers in the admin area

Hello, please is there a way to restrict customers in the admin area to only certain tabs? Like to have customers only be able to edit roomtypes , assets categories etc but not be able to access the themes, payments, facilities tabs?
If there is no way to do that from the options, can I know the templates or controllers or views where it can be found to edit?

Thanks in anticipation.

Also, I dont know if I should open another topic for this but when I choose the article for the Terms and conditions and Privacy , it doesnt work or show in the pop up from the booking form. Please what could be the problem.

Thanks again in anticipation of response

I know and appreciate the fact that you will attend to your subscribed customers more than you respond to free users. But I am going to be a paying customer eventually . If I cant get the little things to work out of the box and you cant point me towards how I can do it myself, how do I get convinced to graduate to subscriptions and paid versions?

Thanks for your response. I will try creating menus for the articles to link the Terms and Privacy articles.

As for the other question, maybe I felt it important because am coming from Jomres booking component and in Jomres, customers cant have access to the backend admin area where the main configuration of the site is done but can manage the bookings from the front end. Are there plans for that? So that customers (Hotel Managers) can be able to manage rooms, reservations from the front end or a restricted backend and not have access to the main core setup.