If you have saved a constructional relation for a geometrical object, this
object now is either a constructing object or a constructed one.
To untie the constructional relation
SISCAD-P provides 2 commands:
For the command with the characterization ACT all those constructional relations are untied, for which
the stated object is a constructing object.
For the command with the characterization PAS the constructional relation that has been saved during the
construction of the object will be untied.
In any case SISCAD-Pneeds the input of the object for which the corresponding
relation shall be untied.