diff -r 9c570a30c98a -r 66d2050d3bd9 src/headerhistorymodel.cpp
--- a/src/headerhistorymodel.cpp	Fri Mar 16 16:28:39 2018 +0200
+++ b/src/headerhistorymodel.cpp	Sat Mar 17 11:33:05 2018 +0200
@@ -1,5 +1,6 @@
 #include "headerhistorymodel.h"
 #include "lddocument.h"
+#include "generics/migrate.h"
 
 HeaderHistoryModel::HeaderHistoryModel(LDHeader* header, QObject* parent) :
 	QAbstractTableModel {parent},
@@ -18,7 +19,7 @@
 
 QVariant HeaderHistoryModel::data(const QModelIndex& index, int role) const
 {
-	if (this->header and role == Qt::DisplayRole)
+	if (this->header and (role == Qt::DisplayRole || role == Qt::EditRole))
 	{
 		const auto& entry = this->header->history[index.row()];
 		switch (static_cast<Column>(index.column()))
@@ -67,6 +68,97 @@
 	}
 }
 
+Qt::ItemFlags HeaderHistoryModel::flags(const QModelIndex& index) const
+{
+	Qt::ItemFlags flags = QAbstractTableModel::flags(index);
+
+	if (index.isValid())
+		flags |= Qt::ItemIsEditable;
+
+	return flags;
+}
+
+bool HeaderHistoryModel::setData(const QModelIndex& index, const QVariant& value, int role)
+{
+	if (role == Qt::EditRole)
+	{
+		LDHeader::HistoryEntry& entry = this->header->history[index.row()];
+
+		switch (static_cast<Column>(index.column()))
+		{
+		case DateColumn:
+			entry.date = value.toDate();
+			return true;
+
+		case AuthorColumn:
+			entry.author = value.toString();
+			return true;
+
+		case DescriptionColumn:
+			entry.description = value.toString();
+			return true;
+
+		default:
+			return false;
+		}
+	}
+	else
+	{
+		return false;
+	}
+}
+
+bool HeaderHistoryModel::moveRows(
+	const QModelIndex&,
+	int sourceRow,
+	int count,
+	const QModelIndex&,
+	int destinationRow
+) {
+	int sourceRowLast = sourceRow + count - 1;
+	this->beginMoveRows({}, sourceRow, sourceRowLast, {}, destinationRow);
+	::migrate(this->header->history, sourceRow, sourceRowLast, destinationRow);
+	this->endMoveRows();
+	return true;
+}
+
+bool HeaderHistoryModel::removeRows(int row, int count, const QModelIndex&)
+{
+	if (row >= 0 and row + count - 1 < this->rowCount())
+	{
+		this->beginRemoveRows({}, row, row + count - 1);
+		this->header->history.remove(row, count);
+		this->endRemoveRows();
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+bool HeaderHistoryModel::insertRows(int startRow, int count, const QModelIndex&)
+{
+	if (startRow >= 0 and startRow <= this->rowCount())
+	{
+		this->beginInsertRows({}, startRow, startRow + count - 1);
+
+		for (int row : range(startRow, startRow + 1, startRow + count - 1))
+		{
+			this->header->history.insert(row, {});
+			this->header->history[row].date = QDate::currentDate();
+			this->header->history[row].author = ::config->defaultUser();
+		}
+
+		this->endInsertRows();
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
 void HeaderHistoryModel::setHeader(LDHeader* header)
 {
 	emit layoutAboutToBeChanged();