zone.extra

Syntax

a = zone.extra(z<,i>)

zone.extra(z<,i>) = a

Get/sets the value stored in the ith extra variable array of zone z.

Returns:

a - value stored in extra variable slot i for zone z

Accepts:

a - value to store in extra variable slot for zone z

Arguments:

z - a pointer to the zone

i - extra variable index to use. If not provided, index 1 is assumed.