There are no limitations for scalar with respect to the frequency range.
The following article explains how the software adjusts the range by itself/you can also play with the settings if you know what you are doing: https://www.spooky2-mall.com/blog/harmonics-explained/
For more details, please check this link:
https://www.spooky2.com/forums/viewtopic.php?t=14772&sid=234c0fa4f757f6dcf03e9c0a870d7b67#p156724