(beginner) set options in IKHandleTool?

Howdy MEL wizards,

Sorry to bring up something so rudimentary, but I can't seem to find it in the documentation. I'd like to make a couple of shelf buttons for the IKHandleTool, each with a different set of options selected. It's easy to call the tool, but I can't seem to specify any of the options (like which solver to use). Any ideas?

Many thanks in advance,
-Ok

//************************
string $ikCtx = ikHandleCtx -stH ikSCsolver;
setToolTo $ikCtx;
//************************

this starts the ikHandle tool and uses ikSCsolver
take a look in the documentation for the flags of the "ikHandleCtx" context