You can give a title to the publishing or remove some instances from the selection. You must then specify options on the next page of the wizard.
If you give a meaningful title, you will easily find each publishing request in the publishing history. You will then be able to run it again without selecting instances or entering publishing options again.
The nature of the selected element determines the publication content. For example, if you select a project, all the instances of the project are published. If you select one or more instances, only these instances are published.
If you click Remove, you can remove selected instances from the selection tree.
Click Next to indicate publishing options.