Unfortunately, with the limitations of the current website, it is not possible to do this.
However, this idea is actually right at the top of my wishlist for inclusion on the new website when it comes about. In fact, I'd like to go a bit further with the idea if it is at all possible.
Many thanks for your suggestion.

I'm working my way through the list of LDPs in my local area over the last couple of years and being so forgetful I often forget which walks I have and haven't done. I also sometimes find walks, developed years ago, that are no longer completely walkable or have become less suitable.
Is it possible to add an "I've done this walk" tick box next to an LDP and maybe a place for personal notes / personal review? Any other LDWA member then looking for an LDP to walk could see what other members thought of the path and if there are any notes of concern before they set out.
Thanks