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From this you can see that the ePixM detector is named epixm_0 and runs on drp-neh-cmp003 (in the FEE test-stand).  The timing DRP is named timing_1 and runs on drp-neh-cmp002.  These names are set up in the .cnf file.  Note that changing them also requires corresponding changes to the configuration database.  To access and modify an entry, click on the Edit button in the Configuration section of the Control GUI.  Leave the Type at BEAM and use the Select pull-down to choose a detector.  You'll see the two detector names currently in this DAQ instance in the configDb list, similar to the second screen-shot above.  You may find you need to modify the epixm_0 and/or timing_1 database instances to adjust various parameters.  As an example, below is a screen-shot of the epixm_0 DB instance, highlighting the run_trigger_group parameter.  You might want to change its value if it conflicts with another detector's or DAQ's usage.

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In the expert section, parameters can be found with which to initialize the ePixM device's registers.  The DB has been initialized with data from the .yml files supplied with the epix-hr-m-320k project.  It is organized in a way similar to what one sees with the device's devGui.  The values are applied to the hardware when the DAQ goes through the Configure transition, so remember to re-Configure (unwind the state machine to at least Connected) when you make a change.

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