[Gmsh] GMSH: Configure other Solvers & Custom Filters

[jmb365]

Hello,

I just happened to see this wonderful software and intend using it with 
(Calculix) ccx.  However, I do not know how to do this.

1. I read on Google searches that gmsh can interface with several 
solvers and that one can configure it in the startup files (.gmsh-options
 or .gmshrc?) or something like that.  Does somebody have an sample 
configuration file for this novice to use as a starting point?  These 
two files exist in my home directory but upon examining them I found no 
reference to ".gmshook" which appears in the "Options -> Solver -> 
General" menu.  This leads me to believe I do not know what I am doing!

2. It appears that "gmsh" can send output to a file using a "Custom 
Filter" (thus possibly output other formats) for which I could not find 
any info by Googling for several hours.  Can somebody help me as to how 
"Custom Filters" can be created, crafted or defined?

Thanks a lot
JMB