Just paste the contents of each file into a single first. First paste the contents of one of the files. After those contents, paste the contents of another file, and so on. When you have pasted the contents of all the files, one after the other, just save the file and execute it from mod setup, or even copy the whole thing and paste it into the alternate mod window, in admin options.
ruirib thanks for your help, but this isn't solve my problem because I am unable to get to the mod setup page. some of my mod put entries into the header file. I need to run the dbs files from an EXTERNAL page.