Big Problem with the Input Boxes
In the iframes you cannot enter-fill the Input Boxes anymore if in the "advanced tab" you have unchecked the "Selection Allowed"...
see this page: http://mfcosmos.com/archives/34668
or this one here in GeoGebra: https://www.geogebra.org/m/Uzheavds
And another problem with the Greek Letter "Ρ" that looks like the English one: "R"