If the indicator is a new addition to the range, you may need to download and reinstall the complete package of indicators to add it to your Navigator window to update the current list. If it is not in the Navigator, please just download and install as before, and this will then add the latest indicators to the Navigator for you. This will overwrite the existing indicators and update with all the latest indicators and versions. You can do this here:
http://mt4.quantumtrading.com/quantum-trading-indicators-update-transfer-reinstallation-guide/