Hi @uzzer, currently, the Text Block itself does not support innner scroll, like you might find in a rich text editor, so you would need to try to keep your text blocks with limited amount of text and create additional text blocks for larger overall text sections. This will change once we have a rich text editor, but for the moment, you will need to split your content up when using multiple text blocks if this is bothering you.
One thing too, the bold controls etc that appear when you double click on the text box will anchor to the top or the bottom of the text box, depending on what position in that text box you are editing. So if you are editing the text on the bottom of the text block, then the anchor for Bold etc appears anchored to the bottom of the text box, and if you are editing text near the top of the text box, the editing controls appear anchored to the top of the text box.
If you have 10 paragraphs of text in a single text block, and it becomes hard to work with, then for now, break it down to maybe 3 or 4 text blocks. This is the only way to do get around this until we have new updates that handle long texts in a better fashion. We are working on this though, so expect updates on this.