From time to time we are getting support tickets asking us to add Request Type (available in Service Desk projects).
We investigated this case, it is an issue on Atlassian's site - until it's fixed Request type won't be available (issue created:25/Nov/2014).
https://jira.atlassian.com/browse/JSDCLOUD-1211
We've contributed to the case (09/Oct/2017) but It's not fixed yet.
As we can see the current status of this issue is , "In progress" on the Atlassian Service Desk."
Please vote for this issue and leave comment, maybe Atlassian's Team will look at this again
We have such an improvement to add ,, Request Type" field to The Scheduler Create Screen in our backlog