Multiple bank accounts - one next check number

I have a situation where I will have 70+ bank accounts that the users will be writing checks out of. The next check number to be used for these designated bank accounts should be the next check number from a single bank account. Any ideas on how to make this happen in JDE?

Example:
Checking Account 101
Checking Account 102
Checking Account 300 Next Check Number 501

Users cut a check from account 101. It uses check number 501.
Account 300's next check number gets incremented to 502.
Users cut two checks from account 102. It uses check number 502 and 503.
Account 300's next check number gets incremented to 504.
Users cut a check from account 101. It uses check number 504.

And so on.
Thank you!

Use P0030G to set up each bank account and configure the "next check number."