I wish to align my FH project with a MyHeritage project that is rather larger. Please tell me, if I seek to transfer a GEDCOM file, how does FH resolve large numbers of duplications?

Thank you, Mike. For the avoidance of doubt, will the procedure in the link you gave avoid or help to avoid the disaster of which you warned? Yours aye, Geoffrey

Family Historian can export a .GED file, which is the standard format for interchange between systems. Look it up first. With kind regards, Geoffrey Hartwell Eur Ing Professor Geoffrey M. Beresford Ha