To Separate Merged Leases Invoice as single Invoice proceed the following steps
Click on Tenant from main menu, will display the tenant detail in grid

Select the tenant you wish to merge invoice, it will redirect to the tenant sub page.

Click on Lease tab, it will display the leases information

Choose merged option from dropdown

Enable the checkbox of leases that you wish to UN-Merged

Fill the mandatory remarks field

Click on Request UN-Merge button

Click on OK button in the confirmation window