Burden calculation using Fixed Amount not Multiplier

Summary:

Ability to add burden as fixed amount by different user Groups 1) Employees - Senior 2) Employees - Juniors 3) Contractors

Content (required):

Ability to add burden as fixed amount by different user Groups 1) Employees - Senior 2) Employees - Juniors 3) Contractors

1) Employees - Senior

-- Burden1 $20

--Burden2 $10

2) Employees - Juniors

-- Burden1 $5

--Burden2 $6

3) Contractors

-- Burden1 $5

Currenlty we can add multiplier at Organizational level with combination of Burden Type and Expenditure Type. What we need is BUrden by fixed amount and person type.