Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
ASDM only displays groups 1, 2, and 5 but you can use the newer DH groups by configuring the IKEv2 policies through the CLI. Tim Glen posted the appropriate commands above, and they do work on ASA5510 running 9.1.7. Not sure about previous versions...