Legally blind friend needing to figure out how to become independent with scleral lens insertion removal and soaking techniques

Have a dear friend who is legally blind and just received a scleral lens. We are helping her with things that are difficult for her, such as putting the saline in the lens before insertion, and filling the soaking chamber with the right amount of peroxide. She's usually able to insert and remove it on her own while we're hanging out with her. We're thinking there may be others in the world who are in a similar situation. If so, what are your hacks and tips and devices for being able to tell where to drip the saline onto the lens, without being able to see, and how to fill the soaking chamber again, without being able to see? I'd like to think we don't need to reinvent the wheel, that there may be some tips or devices out there already. Thank you.