1. No. Why not set it to 15, but use the 5 minutes as "interim". Time between sessions? Teachers got to breathe. 🙂
2. We have it built into our SIS.
bokautvecklingssamtal.se
Is one site commonly used here. All text is in Swedish (don't know if they ever made one in English).
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https://wheretofind.me/@NoSubstitute