IPAM Large Subnet Import - Auto Populate IP Addresses?

Hey guys,

I'm currently trying to add all of my companies subnets into IPAM.

I have downloaded the import spreadsheet provided in IPAM, and populated it with all our subnet information.

Once I import the spreadsheet, all the subnets appear, all correctly configured, but they have no IP addresses allocated!

The only workaround I have found so far is to click into my newly imported empty subnet and 'Add IP Range'. However, I have close to 1,000 subnets so there is no way I can do that...

When I manually add 1 single subnet in IPAM there is a check box for 'Add IP Addresses with the subnet' - this is exactly what I want IPAM to do, but for all the subnets I'm importing.

Is there a feature similar to this that I can use for the excel csv import tool?

Thanks!