Purchase Approval Rule With Multiple Document Line Categories

Summary:

Need to create a new approval rule that combines multiple Document Line Categories

Content (please ensure you mask any confidential information):

Business currently has 2 rules,

Rule 1: if Document Line Category is A, use approval hierarchy X

Rule 2: if Document Line Category is B, use approval hierarchy Y

There is a requirement for a new rule that is as follows:

Rule 3: If PO has contains Category A lines AND Category B lines, use approval hierarchy X.

When trying to implement, the POs are routing through X hierarchy first, then routing through Y hierarchy.

Is there a way to create this combination category Rule 3?