dist_object << ( Fit Handle[n] << ...);
// create an array of handles to the fitted distributions, so you can send commands to specific distributions
The following argument for the Fit Distribution() function is equivalent to the Make into Data Table option on the right-click menu for the Parameter Estimates table:
dt = Open( "$SAMPLE_DATA/Cities.jmp" );
obj = Distribution( Column( :CO ) );
obj << Fit Distribution( LogNormal( Make Parms Table ) );