This Natural profile parameter only applies if Natural Workstation Interface is installed.

Alternatively, you can use the equivalent Natural profile parameter DS or macro NTDS to specify the buffer size.

Possible settings	10 - 256	Size of buffer area in KB. If the required space is not available, the Natural Workstation Interface cannot be used.
	0	The Natural Workstation Interface cannot be used.
Default setting	0
Dynamic specification	yes
Specification within session	no