Access multidimensional subform

[ish]

I'm fairly new to Access and not sure how to approach this problem.

I've table named "Billing" with the following column names:

PrintAccounts = Number of hard copy (paper) invoices (data type = integer)

PDFAccounts = Number of soft copy(PDF) invoices (data type = integer)

CurrentCharge = Monthly usage charge (data type = Currency)

TotalDue = CurrentCharge + Unpaid charge from previous month (data type = Currency) [Note: It will be entered manually]

Duedate = BillDate + (7 to 30 days)

I am wondering if I would able to create a form+subform that would update the "Billing" table.

Form:

Brand:

BillDate:

BillCycle:

Comments:

Subform:

Note:

Groups: Group is the difference between DueDate and BillDate.

Group 1 = If bill is due within 0 to 7 days after BillDate
Group 2 = If bill is due within 8 to 14 days after BillDate
Group 3 = If bill is due within 15 to 21 days after BillDate
Group 4 = If bill is due after 22+ days after BillDate

[NTC]

right now if there is only 1 table then you would only have 1 form, no sub form - and the data would simply repeat in fields

Brand:

BillDate:

BillCycle:

Comments:

Otherwise you want to split that table into 2 tables a Parent:Child or 1:Many relationship and have the 4 key fields above in the parent, and then the other fields in the child....linked together by a Parent autonumber primary key field....when you have those 2 tables then the form/subform approach will work.