It would be nice if the debug console had a little help page of itself, to describe the syntax to issue commands (also the nested ones), and a disclaimer that usage can be dangerous.

Maybe add a debug-console-only command like help that shows how to use nested commands and potentially other advanced tricks, and add 'for more information on using this console type XXX'.

See also:
- https://github.com/bitcoin/bitcoin/pull/7783#issuecomment-248274853
- https://github.com/bitcoin/bitcoin/issues/8544#issuecomment-240970925
- #8912 Console command paths cannot be specified correctly with backslashes
{
    QModelIndex index = ui->peerWidget->indexAt(point);
    if (index.isValid())
        peersTableContextMenu->exec(QCursor::pos());
}
void RPCConsole::showBanTableContextMenu(const QPoint& point)
{
    QModelIndex index = ui->banlistWidget->indexAt(point);
    if (index.isValid())
        banTableContextMenu->exec(QCursor::pos());
}
void RPCConsole::disconnectSelectedNode()
{
    if(!g_connman)
        return;
    
    // G
    QList<QModelIndex> nodes = GUIUtil::getEntryData(ui->peerWidget, PeerTableModel::NetNodeId);
    for(int i = 0; i < nodes.count(); i++)
    {
        // G
        NodeId id = nodes.at(i).data().toLongLong();
        // F
        if(g_connman->DisconnectNode(id))
            clearSelectedNode();
    }
}
void RPCConsole::banSelectedNode(int bantime)