Need to customise a wordpress school management plugin (wpschoolpress)

Software link : [login to view URL] need two more user roles (ref link :[login to view URL]) 1. staff 2. Accountant extra modules 1. Front end student registration (like ref link : [login to view URL]) 2. online fees 3. Accountant module with payroll (like ref link :[login to view URL]) 4. Basic frontend website (like ref link : [login to view URL]) 5. reports , certificates , id card generation [login to view URL] fees explaination (keep it as a extra plugin) ########################## [login to view URL] the online payment gateway to razorpay route settlement so that subschools/school admins( principals) do not haveto make their own payment gateway accounts they only need to enter their bank account details in the admin panel(bank account means all the information of the client needed to pass the money to the clients bank account from my razorpay route settlement system where i will also take a small commision from from the fees which will be included extra to the fees) i will state cashfree marketplace settlement charges and my commision in a [login to view URL] file ################################## # [login to view URL] ################################## #$my_paymentgateway_creds #$my_comission = 1 //meaqns 1% of school fee #$paymentgateway_charges = 2.2 //means 2.2% of the fees [login to view URL] fees = fees + razorpay charge% + my commision% #$paymentgateway_subscription_fees = 3 // means 3% (BEST) you can make it multisite capable where i will set my razorpay creds , commision and razorpay charges budget 200 - 300 US doller