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<p>Hi,</p>
<p>I've just installed Kolab on Ubuntu 14.04 and all seems to work correctly.</p>
<p>I've created a shared calendar using "Kolab Web Admin -- Share folders" and I setup access rights.</p>
<p>My need is to have some users that can create, modify and delete events (even created from other users) and some other users that can't delete events.</p>
<p>The problem is here. If a user try to modify an event created from another user then the same event appears two times: the original one and the modified one. Why?</p>
<p>Also, which permissions do I need to specify in order to achieve my goal?</p>
<p>Thanks</p>
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