For the added travel heads types you can define travel heads using this option.
1. Click on Travel & Expense in Settings Section and select "Travel Heads"
Travel & Expense > Travel Heads
2. Click "Create" and select Travel head Type and Accoun Code
3. Based on the Travel head you select define the other details. For example as shown in the screen shot,
For the Travel head type-"Travel", select the mode type, mode, class. You can add description of the same as well
4. Click "Save". The Travel Head gets added
Based on these created Travel heads you can create Expense Entitlement. Refer to "Expense Entitlements" section of this guide