[net.info-terms] What's CIT-101 option line attribute bit?

ado@elsie.UUCP (02/20/84)

(Apologies if you've seen this before; the "Distribution: na" line it had was
misinterpreted somewhere, and it failed to make it to all of North America.)

This passage appears in our CIT-101 manual:
	4.4.33 OPTION LINE ATTRIBUTE BIT
		Set option line attribute bit	ESC#<
		Clear option line attribute bit	ESC#=

		Selects alternate attribute set for the line the cursor is on.

Can anyone out there shed light on what these escape sequences do?
Use the 'r' key to mail a reply to me.  Thanks.
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