How to change the default command system


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To change the default command system

As described here you can use the SWITCH command to switch round-robin style through existing command systems to select and use a specific command system during an H2OS session. The switch only lasts for the life of the session, and when H2OS is restarted the default command system will appear.


This topic describes how to change the default command system, so your designated command system becomes the default command system each time H2OS is started.


This procedure assumes, of course, that you have created or installed at least one alternate command system.


To view and change the name of the default command system, navigate Options> Controls -> Display.


The Command System field on this screen contains the name of the current command system,  which is LMCMDS.DBF by default.




To change command systems, click the ellipsis command button to the right of this field and use the Windows navigator to locate and point to a different command system that has not previously been registered.





Important: all command systems share a naming convention so they can be identified as command systems. The naming convention format is LMCMDS_ccc.DBF, where ccc can be any word or character string, but the command system's file name must begin with the word LMCMDS and not contain any blanks or special characters.


In this example, we'll switch the default command system to LMCMDS_BILL.DBF




Click OK and a message like this will appear to confirm the selection:







Restart H2OS, and the new command system is the default






1. All command systems are given names that start with LMCMDS, such as : LMCMDS_xxxxxx.DBF, where 'xxxxxx' is replaced with the command system name. For example:


LMCMDS_MY_COMMANDS.DBF is a valid command system name,


So is:








We prefer and recommend LMCMDS followed by an underscored to separate the base/root name from the assigned name.


All it takes is a single character to differentiate one command system from others, so





are 2 different command systems.