Hi,
You can open the CuteSoft_Client/Gallery/Layout/Explorer/Template.htm , and use style="display:none" to hide the buttons.
For SlideShow layout , you can remove this.TogglePlay(); on about line #74
The gallery is plan to support more languages, but now we haven't provide other language files.
You can open CuteSoft_Client/Gallery/Culture/en-us/Code.js and change the strings.
I can reproduct the Parameter is not valid error, That is a bug when we calulate the Byte and KB while the MaxImageFileSize is for KB.
We will fix this error , and implement the MaxImageFolderSize ASAP
Regards,
Terry