Convert Pro v1.4.2 adds support for some WP-CLI command.
In case you have not heard of WP-CLI
WP-CLI is a set of command-line tools for managing WordPress installations. You can update plugins, set up multisite installs and much more, without using a web browser.
Activate your license of Convert Pro using WP-CLI
wp brainstormforce license activate convertpro <purchase-key>
PS – In the commands above, don’t forget to replace <purchase-key> with your actual purchase key.