These support tools are provided free.
JMRI and DecoderPro (part of JMRI) are open source and provided by a community of developers.
JMRI Jython script files
Put the file(s) in ‘Scripts Location:’. The location is shown in the JMRI Help menu ‘Locations…’.
LN Message Tool:
The LN Message Tool is a JMRI script that allows you to easily send and view several of the most common loconet type messages. These include switch, feedback, sensor and signal with aspect type messages.