Mariia Tolstaia

@rodichenko **Bug:** Channels settings aren't kept at changing view from *Well view* to *Field view* or back.

> > Channels settings aren't kept at changing view from _Well view_ to _Field view_ or back. > > [40915c3](https://github.com/epam/cloud-pipeline/commit/40915c3841c40c05cf01e41c3b761295aa292ed7) should fix that Verified as fixed

@rodichenko It would be useful to show **Download current video** button instead of disabled **Download current image** button on the ***Settings*** panel for video.

**Test case** was created by #2741 and located [here](https://github.com/epam/cloud-pipeline/tree/develop/docs/testcases/UI/Run_tools_in_sandbox/Launch_parameters/2736.md).

**e2e-test** was implemented via https://github.com/epam/cloud-pipeline/pull/2741.

@rodichenko The **Add quota** button should be hidden if ***Overall*** quota has been already configured in the correspond section at the *Quotas*/*Compute instances*/*Storages* tab.

@mzueva , @sidoruka - Only *Admins* and users with the ***ROLE_BILLING_MANAGER*** shall have the ability to see exceeded billing quotas in the **Users management** table. - Regular user should see...

@mzueva Billing Quota to ***Billing centers*** with action ***Stop all jobs*** is applied to admin members of Billing center: all active jobs with admin user owners are stopped as well...

**Test cases** were created by https://github.com/epam/cloud-pipeline/pull/2705 and located [here](https://github.com/epam/cloud-pipeline/tree/develop/docs/testcases/UI/Billing/762).

@Wedds It should be possible to not set a value for `launch.max.runs.user.global` system-level preference. Now error `Preference 'launch.max.runs.user.global' contains invalid value ''` is shown at saving preference without value.