Matomo Tag Manager - Preview/Debug area covers site content

I’m currently looking for a solution to a problem in Matomo Tag Manager:

in Preview/Debug mode the bottom half of the page content is covered by the Preview/Debug area.

Therefore, the items behind it cannot be seen or clicked in Preview mode (see the screenshot in the appendix).
I need to somehow minimize the Preview/Debug area.

I did a research on the Matomo forum in English and French, but I didn’t find this issue mentioned.
Until this is resolved, I cannot create the tags & triggers corresponding to the covered items.

Google Tag Manager has the option to minimize Preview/Debug area (a button in the lower right corner)