Magical datings : CONTEXT RECORD and OPE should gain dating from relations with objetcs (CONTEXT RECORD or FINDS)
OPE and CONTEXT RECORD can have dating (periods or more detailed features)
In the future :
CONTEXT RECORD should gain dating from related FINDS (with dating)
OPE should gain dating from related CONTEXT RECORD (with dating)
Theses dating would not replace formal dating related to CR or OPE but would be another info like "inherited dating" or the like.
It should be exportable.
To be discussed