Make it easy to by from a group
This can be done by adding a expense paid by multiple people, each person paid for their own share and split by (the person buying). I have previously done this using negative values, but it never seemed to really be supported.
A quick fix would be to add the "each person paid for their own share" to mobile (iPhone, dono if the Android version has it).
Makes sense! I’ve actually started work on a feature like this, but I’m not sure exactly when it will be released. (Group buy/reimbursement transactions are very rare in general, so a few other things have taken priority.) Hopefully soon, though!