Please add the ADX rate of change indicator

Hi All,

please add if possible ADX rate of change (or any other indicator if possible to use the same logic).

Logic is:

T1 = value is 7.5

T2 = value is 8.0

T3 = value is 8.8

T4 = value is 10.0

T5 = value is 9.5

indicator should show

T1 = value is (T1 -T0)

T2 = value is 0.5 (T2 -T1)

T3 = value is 0.8 (T3 -T2)

T4 = value is 1.2 (T4 -T3)

T5 = value is - 0.5 (T5-T4)