If set, and the block does not contain any embedded blocks, then the row which has focus can be scrolled out of view.
Block Read Only (blkrdonly)If set then all controls in the block are treated as read-only, irrespective of their individual settings.
Tabs wrap (tabswrap)Normally, tabbing out of the last control in the tab order moves to the next record. If this option is set then focus returns to the first control without changing record. Similary for back-tab.
Record locking (locking)This setting controls record locking. See the manual for details.