21.5 Max memory

On Windows and Linux, edit the files Geneious.default.64bit.vmoptions(or .32bit as appropriate) and Geneious.in.use.vmoptions in the installation directory and change the -Xmx value to your preferred setting.

On Mac OS X, edit the /Applications/Geneious.app/Contents/Info.plist file and find the VMOptions section and modify the -Xmx setting.