I cannot see any building template. What do I do wrong?

HiStruct is fully supported and runs smoothly in Google Chrome  or Mozilla Forefox web browser. It is strongly recommend to use these as other may cause problems.

When opening the app in Interner Explorer, users see the page frame but no templates pictures appear. Picture shows missing template choice for guest user (no user account):

When opening the app in Microsoft Edge, the situation is identical. Picture shows an example where no temlpate selection opens when clicking on button Add new component:

Workaround is obvious – please download and install Google Chrome web browser.