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FinalBuilder can optionally close other instances of itself which are using the scheduled project. This is useful because only one FinalBuilder instance can have a single project open at a time.
The Close unmodified idle instances of the project option will close any other FinalBuilder instances which are not running and have no unsaved changes. This is a safe option, and it is recommended that it is enabled.
The Close all instances option will close any FinalBuilder instances which are using the same project file. Instances will be closed forcibly if necessary. This option will lose all saved changes, and may forcibly terminate builds in progress if they do not stop cleanly. It is recommended this option is only used sparingly.
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