Hi @avitalars, the space you’re referring to can’t have any web parts as it is restricted by Microsoft. However, there might be a workaround to what you’re trying to do.
It looks like you’re trying to insert a stock ticker.
You can use Origami Embed Plus web part to add a stock ticker code to a regular web part section and then using CSS make the ticker stick to the top of the page.
If you’d like, please send your ticker embed here and we’ll try to provide you with the code to do this.