Partition options for BMS SEND commands

When you write to a partitioned screen, you write to only one partition, and the effects of your command are limited to that partition.

ERASE and ERASEAUP clear only within the partition, and FREEKB unlocks the keyboard only when the partition becomes active.

You can specify the partition to which you are sending with either the PARTN option in your map definition or with the OUTPARTN option on your SEND MAP. OUTPARTN overrides PARTN. If you don't specify either, BMS chooses the first partition in the set.

The use of partitions affects the suffixing of map set names that we described in Device-dependent maps. The map set suffix is taken from the MAPSFX value for the partition instead of being determined as described in that section.