The options are defined one per line: -server vmoptions file created using 'Edit Custom VM Options' action has the priority over the original file in the bin directory. Toolbox App -> the locknut icon -> Settings -> Configuration -> Java Virtual Machine options 'Edit.' vmoptions file is managed by Toolbox App. vmoptions file is created and located in the config directory.

If you can't start IDE to access this menu, edit the file manually as described below.

vmoptions file and open an editor where you can change them.

The recommended way of changing the JVM options is via the Help | Edit Custom VM Options action. VM options are loaded from the IDE_HOME\bin\.vmoptions file or from the copy of this file created by the Help | Edit Custom VM Options main menu action.