Input text is marked when I click into the field

Scriptcase 9 General
#1

All input fields in my form are marked when I click once into the field. When I will only change 2 characters in this field I must click once more otherwise the whole text is deleted.
Can I deactivate this handling? It seems a Javascript.

#2

I have found the solution. In the settings of the form there is the setting “highlight text on focus”