[Xymon] Creating graphs on the fly?

Hi All,

Im trying to create a graph on the fly from a custom script. Currently im monitoring a piece of software via an external script, and depending on whats happening with the software the script creates or deletes column's within xymon (i.e. what gets monitored by xymon changes over time). That all works fine, but im now trying to add/remove a graph each time a column is added/removed and i've found two ways of doing this so far (automated from the script):

1. change the test2rrd/graphs in xymonserver.cfg and add an entry in graphs.cfg then send my data via the "trends" data channel.
2. same as above but add an ncv variable to xymonserver.cfg and send data via the data channel for the column, kills off the xymon_rrd processes.

In both cases my ext script modifies xymonserver.cfg and graphs.cfg on the fly and im curious to know if theres a better way of doing this?