Requisition approval using project organization

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Hello all

i have 2 questions

1. We are trying to direct requisition created based with a project to the organization manager (cost center manager) of that project for approval. The project organization is not an attribute in FSM but i understand there is a way to derive this in BPM and determine who the manager is. Has anyone faced this issue and how did you solve it?Attached is a screenshot of the org on the project- 
2. Is there a possibility to store approval limits for each cost center manager or one need to incorporate the amount in the condition for each rule?