This indicator allows to have the trendflex and the reflex in the same sub-window.
It also allows to plot both Reflex (UseTrendFlex=false) and Trendflex (UseTrendFlex=true) lines.

Plus you can use the crossover between fast and slow lines as it shown in the [url=http://traders.com/Documentation/FEEDbk_docs/2020/02/TradersTips.html]Traders' Tips[/url].

If you need to see only one curve so just set the FastLength=0 or SlowLength=0.