Thanks for reaching out here with your question/concern.
1.We do have this option of applying the preset to multiple photos. For this first you apply a preset on a photo and then copy those seettings via the 3 dot icon on mobile or Desktop client. Once the edit settings are copied, you can go to the grid mode and select multiple photos and batch paste those settings that contains a preset.
2. For now we can reset photos individually only. There is no option to select multiple photos and reset them. I would be more than happy to share your ask with the team and see what we can do about it.
Hope I understood your concern correctly, and could help you if not please reach out again with more details.
Thanks for your reply Kavita, by copying setting to multiple photos won't let the AI mask compute automatically in the mobile version, you have to get into the AI mask panel to recompute manually, also if you have more than one mask but referring to the same object (one normal, one inverted), you have to press the recompute botton one by one to get the works done, which makes the work flow more complicated and could be optimzed. IMO, the masks could refer to the same computed object instead of compute it twice manually.