I do not know, is this possible in Kodular?
how to mark text part in the images?
dora_paz
(Dora)
#2
I guess, this doesn’t use a textbox.
dora_paz
(Dora)
#4
@Taifun 's extension is for use with textbox, with web viewer I believe you can use
Otherwise you can always use search 
https://community.kodular.io/search?q=highlight%20text