Hi,
You can do this using Javascript
function InsertAtCaret() {
try {
var editor = $find("<%= EdPatconsuForm.ClientID %>");
editPanel = editor.get_editPanel();
if (editPanel.get_activeMode() == 0) {
var designPanel = editPanel.get_activePanel();
designPanel._saveContent();
designPanel.insertHTML('your text'); setTimeout(function () { designPanel.onContentChanged(); editPanel.updateToolbar(); }, 0);
designPanel.focusEditor();
}
} catch (e) { alert(e); }
}
Hope your Problem Will Solve :)