Hi Dan,
Yes there is a way you can do this. When you insert a step into a sequence, based on the adapter (i.e. LabVIEW) that the step is using, a step property called SData is populated with the info you supply in the dialog. In the sequence editor, select Configure>>Station Options>>Preferences and select the option "Show Hidden Properties". Right click on one of the steps that uses an adapter and select "Open Tree View" from the context menu. In the tree view, view the step's properties by clicking the "+" symbol beside it. Here you should see a property called SData. Inside of this property, you will see information regarding the configuaration of your step. You should be able to set any of these properties using the SetValXXX and GetValXXX methods
of the Propertyobject class. However, the SData property is NOT copied at run-time so any changes you make at runtime, will affect ALL running instances of that sequence. Please refer to the following link for more information:
http://zone.ni.com/devzone/conceptd.nsf/2d17d611efb58b22862567a9006ffe76/246f6c77f5ad473e86256a2c0055c0d0?OpenDocument
Hope this helps!