Other settings

In the 'Other settings' tab, you'll find a option: 

The ability to configure whether you want to allow users to save changes to flows without having to leave a comment about the change.

save comment settings

The recommended setting is the default one: Leapwork will not let you save any changes in flows or sub-flows without adding a comment describing the committed change.

By removing the check-mark below, no comments are required in order to save a flow or sub-flow.