CCMA/JCMA should allow you to mass-select Spaces/Projects from CSV

Issue Summary

Currently, in the Cloud Migration Assistant tooling, you select which spaces to migrate in one of a few ways:

• Click an individual Space/Project,
• Select All on a single page of 10 Spaces/Projects (series of 10 selections),
• Search for a specific Space/Project, then Click the checkbox

This requires manual effort to search through all spaces to select a large range in a migration plan in the Confluence/Jira Cloud Migration Assistant.

In larger/complex migrations, it would be beneficial to export a list of Spaces/Projects (their keys or other identifiers) and allow users to import a CSV/text file (or in-tool GUI) that then selects a large range of Spaces/Projects into their migration plans, rather than checkbox dialogue. 

Suggestions

1. Allow the Confluence/Jira Cloud Migration Assistant to export/provide a list of all Spaces in the Confluence on-premise Site,
2. Require the user to edit this list (CSV, textlist, GUI) in an easy fashion that takes into account large amounts of spaces. 
3. Allow the import of this list (CSV, textlist, GUI) into a Confluence/Jira Cloud Migration Assistant Migration Plan Wizard during the step of selecting what spaces you plan to migrate, allowing multiple Spaces to be selected at once.

Expected Results

A wide scope of Spaces/Projects can be selected and edited outside of a checkbox dialog, allowing faster setups of phased/partial migrations in medium/large migrations.

Workaround

Currently, there is no known workaround for this behaviour. A workaround will be added here when available.