How to Use the Free Demo

Step 1. Go to MetaTrader Market product page.

Via the terminal
Enter 'volumebyprice.com' in the search box on the top-right corner of the toolbar.
Guide Image 1: How to Use Set Files or

Via web browser
MetaTrader 4: https://www.mql5.com/en/market/product/35577
MetaTrader 5: https://www.mql5.com/en/market/product/35579

Step 2. Sign in to your MQL5.com account (if you do not have an account, sign up here ). Click the 'Download demo' button.
Guide Image 2: How to Use Set Files

Step 3. Open the 'Strategy Tester' window:
menubar view strategy tester
Select the 'Volume by Price MT4' or 'Volume by Price MT5' indicator.
Optionally adjust default configuration via the 'Inputs' tab. Click the 'Start' button. Free Demo limitations: Distribution with chart timeframe period price data. Range of 200 bars. Up to 5 segments. Drag & Drop, On-Chart Controls and Application Program Interfaces not supported.

Guide Image 3: How to Use Set Files

Trading platforms Download for free
A powerful platform for Forex and Exchange markets
Successful trading starts with convenient and functional trading. MetaTrader 5 is the best choice for the modern trader.
Download the MetaTrader 4 platform via your preferred brokerage website.
Trading community and app store
The largest community of traders, and online store of trading robots and technical indicators
The world's largest store of applications for financial trading can be accessed from the Market tab of your trading platform or on the website.
Example Compositions
Regulated Brokers Open demo account

References
"Testing Visualization - MetaTrader 5 Help" https://www.metatrader5.com/en/terminal/help/algotrading/visualization
"Setup - Tester - MetaTrader 4 Help" https://www.metatrader4.com/en/trading-platform/help/overview/strategy_tester/strategy_tester_setup