Delete sheets boards of source region

If the indicator of Deleting is switched on, then sheets boards of source region are not transferred into output region. If the indicator is switched off, then sheets boards of source region are transferred into output region with code: Marking of linear (Выделение линейных).

After execution of the given operation the user can finish merging objects of output region by means of Map Editor and then delete objects with code: Marking of linear (Выделение линейных).