Possible to change status of a previously completed step in a process chain

HI

Does someone know if it is possible to change the status of a previously completed step (or even the entire chain) by means of another process step?

The situation is that I happen to have a query which will, given a certain situation, have a step going read and causing an alternate method of completing the loading procedure.

If that situation occurs and all subsequent steps have been green, the whole chain is supposed to be green. However through the initial error the chain will show up read in the monitor.....

Now I am looking for a method/process step to change the status of either the process that went on read or to set the status of the entire chain to green (despite having a step turning read).

Does anybody have an idea on that issue?

Regards,

Minima