can you have yDNA extracted from Optosmal raw data downloaded to this site, and extend back to about 900 AD
FamilySearch does not use DNA yet like Ancestry.com or MyHeritage.com
Here is a video link
hope this helps, all the best
Welcome to the "Community.FamilySearch" Forum.
I am just another 'lowly' User/Patron ...
And, not that I can be of much help/assistance ...
That said ...
Can I humbly suggest that you REPOST this 'Question' of yours, to a couple, of 'Group(s)', in the 'Groups' section (ie. found on the 'left-hand-side' Column), of this "Community.FamilySearch" Forum; on the 'off chance' that, the members of those 'Groups' may be able to help/assist you.
By the way, you will need to "Join" a 'Group' to post a 'Question' in that 'Group'.
The two (x2) 'Group(s)' that I would humbly suggest; at least, as a starting point, are:
[ 1 ] ... Home > Groups > Genealogy and the Y Chromosome
[ 2 ] ... Home > Groups > Genetic Genealogy Research
I hope this helps.