Welcome to wikitree! You can add the information where you took your dna by clicking https://www.wikitree.com/wiki/Special:DNATests Keep in mind that wikitree only keeps record of where you took your DNA Test. It's still the responsibility of the Profile Manager to triangulate and prove Relationship Status before editing Status Indicators.
As always if you need help please feel free to come back to the G2G and ask. Also feel free to participate in any conversation you may have interest.