Hey! Regarding whether you can add a TSV list into the 3dsrngtool, yes! From the main menu, under the "parents information section" (left side) click the Edit TSV List button. You can then enter your TSV(s) into the menu that pops up and hit save. Only enter 1 per line.
Hello there! I was looking through the Friend Safari spreadsheet and you got quite the awesome safari! I was wondering if you could add me. My friend code is 0834 1072 5094 (ign: Xander), unfortunately it's a a simple normal type with the most defining pokemon being Chansey, but it would be appreciated either way.