You can customize the help pull-down in any way. For example; you may not wish to include a particular choice, you can translate or customize the text of each item as necessary.
If have have customized the HELPPD91 include file, you must copy the file to a suitable work directory and then ensure the work directory is accessed by amending the "INCPATH" within the ESL configuration file. If you do not copy the include file, any amendment may be overwritten when you install a new version of the ESL software.