While text overflow issues were discussed in the "Affinity Publisher 1.8.3 - Text Overflow issue," I would make this suggestion here. Could turning the Hide Overflow box in Text Frame be put in Keyboard Shortcuts? As yet I have not found it there.
Here's my reason. In creating a new text in APub I often work with various older and longer texts in the same doc, each in their own text frame and background fill, but without the full text showing until I need it so as to save page space. A quick keyboard shortcut would allow the user to reveal the entire text without going to the Text Frame panel and clicking the box. Thanks, and I hope I have not overlooked this as already a keyboard shortcut.