Instructions for installing a demo version for MT4:

1. Open the MetaTrader4 terminal.
2. In the terminal menu, go to the «File» / «Open Data Folder» submenu.
3. In the window that opens, go to the “MQL4” / “Experts” folder.
4. Place the TradePanelMT4_Demo.ex4 file in the “Experts” folder. (the file is attached at the bottom of this post.)
5. Close the folder, refresh the “Navigator” window of the terminal.
6. In the “Navigator” window, find the TradePanelMT4_Demo file, right-click on it and select “Attach to a Chart” from the context menu, or simply drag the file onto the chart.

Instructions for installing a demo version for MT5:

1. Open the MetaTrader5 terminal.
2. In the terminal menu, go to the «File» / «Open Data Folder» submenu.
3. In the window that opens, go to the “MQL5” / “Experts” folder.
4. Place the TradePanelMT5_Demo.ex5 file in the “Experts” folder. (the file is attached at the bottom of this post.)
5. Close the folder, refresh the “Navigator” window of the terminal.
6. In the “Navigator” window, find the TradePanelMT5_Demo file, right-click on it and select “Attach to a Chart” from the context menu, or simply drag the file onto the chart.

The demo version contains the following restrictions: only works on demo account.

If you have any questions, ask them in the comments below.