set status_hold [<text>]

This variable sets the string displayed in the status bar when the current window has HOLD_MODE turned on, and there are lines of text waiting in the queue to be displayed.

This string is represented by %H in the STATUS_FORMAT string. The %H is treated literally within STATUS_HOLD.

Customizing the message indicating lines are being held:

/set status_hold Held Lines: 

When lines are held, both this setting and STATUS_HOLD_LINES are activated.