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																@@ -301,7 +301,7 @@ $(document).ready(() => { 
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																             setObjEnable($('a[name=base-opr][type=up-move]'), valid && first && sameParent && first.level > 1 && preNode); 
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																             setObjEnable($('a[name=base-opr][type=up-move]'), valid && first && sameParent && first.level > 1 && preNode); 
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																             setObjEnable($('a[name=base-opr][type=down-move]'), valid && first && sameParent && first.level > 1 && !tree.isLastSibling(last)); 
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																             setObjEnable($('a[name=base-opr][type=down-move]'), valid && first && sameParent && first.level > 1 && !tree.isLastSibling(last)); 
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																             const posRange = last ? pos.getLedgerPos(last.id) : []; 
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																             const posRange = last ? pos.getLedgerPos(last.id) : []; 
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																-            setObjEnable($('a[name=base-opr][type=up-level]'), valid && first && sameParent && tree.getParent(first) && !nodeUsed 
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																+            setObjEnable($('a[name=base-opr][type=up-level]'), valid && first && sameParent && tree.getParent(first) 
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																                 && first.level > 2 && ((!posRange || posRange.length === 0) || tree.isLastSibling(last))); 
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																                 && first.level > 2 && ((!posRange || posRange.length === 0) || tree.isLastSibling(last))); 
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																             const preNodePosRange = preNode ? pos.getLedgerPos(preNode.id) : []; 
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																             const preNodePosRange = preNode ? pos.getLedgerPos(preNode.id) : []; 
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																             setObjEnable($('a[name=base-opr][type=down-level]'), valid && first && sameParent 
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																             setObjEnable($('a[name=base-opr][type=down-level]'), valid && first && sameParent 
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