How to provide beam reinforcement on actual basis extra top bottom? with the help of RCDC

In the output table, for each beams the detailing can be edited. For that, there is a option “Detail Section”. This is available by double clicking on the respective cells or from right click. Using this option, one more set of bars can be added.  This following snap shows the table for detailing section:

Number of extra bars can be added in N2 column and diameter can be added in the N2 column.

If it’s a end support, this will be added in that support in a length of L/3 or L/4 as defined in the rebar curtailment settings and if its a continuous support, this will be provided to both left and right of that support.

Hope this is the answer you are looking for. 
Revert back if you any points on this.