PosInputDialog(codeName, 'L')"></k4-tactic-menu-entry>
    <k4-tactic-menu-entry
            disabled="agenda.items().length <= 0"
            proof-id="{{proofId}}" user-id="{{userId}}"
            name="&exist;R ..." code-name="existsR" exec="openTacticPosInputDialog(codeName, 'R')"></k4-tactic-menu-entry>
    <k4-tactic-menu-entry
            disabled="agenda.items().length <= 0"
            proof-id="{{proofId}}" user-id="{{userId}}"
            name="&exist;L" code-name="existsL"
            exec="open