Shortcodes for layout

I previously had a booking form for one service – [fat_sb_booking layout=”one-services” hide_employee=”1″]

which worked well – nice calendar displayed, etc.

Now that I’ve added a second service (so removed the layout=”one-services” from the shortcode it gives me a drop down menu for location (not needed as only one location). Then it has a dropdown for service category (there is only one category so I’d like this auto-selected and not showing on the form), a drop down for class (service) = it then puts in todays date (and the calendar is only displayed if you click on that date, so not clear it can be changed).

Ideally I’d just like a layout where location and service category are automatically selected and hidden, and after selecting class / service it displays the calendard like it did with the one-services layout. How can I do this?