+.TP 5
+O_NO_LEFT_STRIP
+Preserve leading whitespace in the field buffer, which is normally discarded.
+.TP 5
+O_EDGE_INSERT_STAY
+When inserting into a field up to the boundary position,
+optionally delay the scrolling,
+so that the last inserted character remains visible,
+but advance the cursor to reflect the insertion.
+This allows the form library to display the
+inserted character in one-character fields
+as well as allowing the library to maintain consistent state.