You need to modify the provider:
Step 1. Open the CEHtmlEditorProvider.vb, in the line 540 you will find the following code:
cntlCE.SetSecurityImageGalleryPath(tempfolder)
cntlCE.SetSecurityFilesGalleryPath(tempfolder)
cntlCE.SetSecurityMediaGalleryPath(tempfolder)
cntlCE.SetSecurityFlashGalleryPath(tempfolder)
cntlCE.SetSecurityTemplateGalleryPath(Templatefolder)
You can change it to meet your own requirements.
For example:
cntlCE.SetSecurityImageGalleryPath("/Portal/id/images")
cntlCE.SetSecurityFilesGalleryPath("/Portal/id/docs")
cntlCE.SetSecurityMediaGalleryPath("/Portal/id/media")
cntlCE.SetSecurityFlashGalleryPath("/Portal/id/flash")
cntlCE.SetSecurityTemplateGalleryPath(Templatefolder)
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