Mork understand thrww edit operations for rows and tables:
+ : the next object adds or inserts content listed to existing content (default, can be omitted)
- : the next object cuts or removes content listed from existing content.
! : the next object adds content listed, after clearing or deleting old existing content. 



Complete Group definition of a "cut object" operation:

@$${9{@
{1:^80 {(k^BF:c)(s=9)} -
  [-3]}
@$$}9}@

Manually transforming this into an XML-like format:

<group id="9">
 <table id="1" scope="ns:addrbk:db:row:scope:card:all">
  <metatable>
   <cell scope="c">
     <key>k</key>
     <value>ns:addrbk:db:table:kind:pab</value>
   </cell>
   <cell>
     <key>s</key>
     <value>9</value>
   </cell>
  </metatable>
  <!-- "Cut" command removes the next row. However, dont know why its rowId=-3 instead of rowId=3 -->
  <cut/>
  <row id="-3"/>
 </table>
 <commit/>
</group>