Interest rates based on utilisation of facilities

Hi Team,

Can we setup interest rates based on facilities (loans) utilization?

A) The interest rates and commitment fees are vary based on utilization. If the credit loan utilization is more than 80%, the commitment fee is 1% and interest rate is 2%.Likely, Credit loan utilization is less than 80%,the commitment fee is 1.5% and interest rate is 1.8%.Can we automate this procedure with facilities or do you have best advise?

B) Can we  have two interest rates for tracking and calculation? The interest rate equal to Base rate + margin rate.

Thank you,

AR