how combine few projects into one dashboards

[Дудник Любов Станіславівна]

in Settings dashboard in Swimlanes exist option "projects"
I want to use it for combining a few projects under one dashboard.
But can't understand how to do it.
Please, somebody help with it 

[Trudy Claspill]

Hello @Дудник Любов Станіславівна 

Can you provide a screen image of the screen you are viewing so we can verify what you are trying to do?

[Дудник Любов Станіславівна]

All three projects that I highlighted at the top need to bring their user stories to the fourth project "Nova Post EU".
The purpose of this is to track the progress of each project

[Trudy Claspill]

Projects are containers for issues (user stories). Issues can be in only one project.

An agile board, like the Kanban board displayed in the background of your screen image, is a method to display and manage issues contained in projects.

If you want to combine issues from multiple projects to display in one agile board, you must first create a Filter to retrieve the issues in those projects. This is done through the Advanced Issue Search screen, which is an option under the Filter menu.

To get issues from multiple projects you would use a filter like this:

project in (<project1>, <project2>, <project3>) order by Rank desc

For more information on searching for issues refer to 

https://support.atlassian.com/jira-software-cloud/docs/search-for-issues-in-jira/

After creating your filter you then save your filter for later use. For information on saving your filter refer to

https://support.atlassian.com/jira-software-cloud/docs/save-your-search-as-a-filter/

If you want other users to be able to use the filter and see the results of that filter displayed in an agile board, you need to share the filter with those users. Refer to

https://support.atlassian.com/jira-software-cloud/docs/save-your-search-as-a-filter/#Savingyoursearchasafilter-sharing

After saving and sharing your filter, you then can create an agile board that uses that filter. Refer to

https://support.atlassian.com/jira-software-cloud/docs/create-a-board-based-on-filters/

[Дудник Любов Станіславівна]

Thanks for your help. I found out I've made mistake all time.
About filters, it's needed setting in board settings-in General-in Edit query filter
And then use 

project in (<project1>, <project2>, <project3>) order by Rank desc