Yes, a tabular load can be used for TCC(real constant 14) with TIME as the primary variable in the table (See *DIM command). The same method can be used in Workbench using the Commands Object for the specific contact using the contact id, cid.
! define the table to hold the time-dependent TCC
*DIM,tdtcc,table,5,,,TIME
! enter the time values into column zero
tdtcc(1,0) = 0, 10, 15, 25, 30
! enter the TCC values into column one
tdtcc(1,1) = 100, 90, 70, 40, 50
! set the TCC real constant to the tabular values
rmodif,cid,14,%tdtcc%
! the TCC will be linearly interpolated as needed