Matrix: How to Program DTL - Dual Talk & listen mode on 4215E panels connected to an Eclipse matrix

Is it possible to set a Key for the 4215E panel as “Dual Talk &Listen” with ECS (version 5.0)?
Yes:
To do the DTL function
1) hold “CTL” key on your keyboard then select the label from ECS ,
2) place the “orange “ key on to the panel
3) then double click on the key and in the bottom right hand corner of the screen .. select key specific actions and select dual talk listen