Good mind map dictionary

Good New concept study Dictionary!

It need some short cut!
As Finder,
Forward ]⌘
Backword [⌘
or →⌘ ←⌘
or anythingesle

sound short cut also needed for more smooth operation!

Please consider my idea next update!!!!

Thank for good app!
And have a Nice Day!!!

AVATAMSAKA IN KOREA.S about SynMap