Default and allowed Cost Center Attributes on BPM Workflow

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Each employees have defined on their default cost center , on the default expense account.
1-) Default Cost Center
During requisition approval process we need to identify if the requester changed his default cost center in order to apply a different rule for this cases.

Are there any attribute on requisition workflow or any other way that allow to identify this cases ?

2-) Allowed Cost Center Range 
In EBS it was possible to assign to each position the range of accounts that it was allowed to approve.

Now on ERP Cloud we manage approvals on BPM, i couldn't find an specific attribute to identify it the same setup to assign cost center ranges to a position. Is it still possible to achive it in ERP Cloud ?