UNFREEZE {generators}

Use commas to delimit more than one generator.

Arguments:

  {generators}          One or more generators to unfreeze.

Overview:

THE FREEZE command makes the current subobjects of {generators}
"permanent" until UNFREEZE is used to free the generator's
program to make new subobjects. Generators automatically FREEZE
themselves after running their program to create subobjects.

See also:

FREEZE