OPE / ADD/MODIF/sheetfiles : An OPE could be linked to many "Sites"
At this time :
- An OPE could be link to only one "Site" (Archaeological entity),
We should be able to :
Add multiples sites (Archaeological entity),
Add a site on the fly ("+" button if not present),
A Site should be define by (compulsory in bold): National Number (integer), Usual Name (txt, 120), relics types (list in table, with txt search), periods types (list, multi, as for OPE), Town (list in table).
Search in OPE menu by Archaeological entity (site); the sheet-file of theses entities should provide all info recorded and related OPE (list, with "i" button).
OPE sheet-file should provide a list of related entities (with "i" button to access related sheet-files).