Although it isn't an ideal solution, it may be easiest to use a combination of Skips, Jumps, and then simply copy / paste sections of your excel file.
If the SSD is to be increased, you could simply skip to an area in which the time-delay is higher.
It may also be noted that we're currently trying to implement an easier method to complete this task within DirectRT 2010. The following link will direct you to a thread in which the feature has been requested:
http://www.empirisoft.com/support/showthread.php?t=621