Hi Maud,
I’ve responded to your request in the WordPress repository:
https://wordpress.org/support/topic/one-shortcode-for-one-timeline?replies=3
Also, Mark and I cleared this issue up via email. I should have cleared that up here and closed out the thread.
To anyone else who comes across this thread after purchasing the pro version, I would recommend entering your license key into the support page of the plugin. Once entered you’ll be able to submit support requests directly from within the plugin to our support ticketing system.
You can also find the documentation for the pro version here:
http://www.evan-herman.com/wordpress-support/timeline-express-pro-documentation/
Thanks,
Evan