Modify/Update Object data with DXL

Hello Guys,
Please help me to solve below problem that I am facing for DOORS Module

My current object contains following data
Before t0,
EF_Data is FALSE
BF_Data is FALSE
Between t0 and (t0 + 640ms),
EF_Data is TRUE
BF_Data is FALSE
Between (t0 + 640ms) and t1,
EF_Data is TRUE
BF_Data is TRUE
I just want to modify above text as below (just an extra same line at each time stamp)
Before t0,
EF_Data is FALSE
BF_Data is FALSE
ACT_Data is TRUE
Between t0 and (t0 + 640ms),
EF_Data is TRUE
BF_Data is FALSE
ACT_Data is TRUE
Between (t0 + 640ms) and t1,
EF_Data is TRUE
BF_Data is TRUE
ACT_Data is TRUE
This changes I want to perform in a many objects (in same column) and in multiple modules. In above example Data is different in each object (example attached).
SystemAdmin - Mon Aug 13 11:08:45 EDT 2012