What versions do you use?Update to the latest:https://www.lpar2rrd.com/download.php by following https://www.lpar2rrd.com/upgrade.php
https://stor2rrd.com/download.php by https://stor2rrd.com/upgrade.php
https://www.xormon.com/download.php by https:…
You should be able to change graph group width. If graph doesn't fit the group width, it is positioned below.In LPAR2RRD/STOR2RRD you can change also height of graph group, but it isn't persisted anyway.