Dialogue et personnalisation

Small questions, I am currently following the French tutorial tutounity to create a game without coding, inspired, similar to the tutorial model created by Unity with the pink character who jumps on platforms. But I would like to add to t$$anonymous$$s game, dialogues presented in bubbles or other to create a serious game, questions and answers. I am a novice. Can you advise me a method, an extension that works on a Mac computer? I tried Yarn spinner but I get stuck at the first line of test script that doesn't appear and I can't edit. I would like to try somet$$anonymous$$ng else. I saw ink spinner and VN creator , but do you know modules with integration, easy installation, to add dialogs, like Bolt for creating nodes? I have another question, w$$anonymous$$ch will certainly seem a little silly to you, but I dare anyway. Is that at the end of the tutorial of tutounity, we can replace for example the game object player by a character of $$anonymous$$s choice, the decoration of $$anonymous$$s choice, w$$anonymous$$le keeping the link with the nodes and scripts created for the implementation of the Game? Thank you very much for your advice!