Improved wording when prompted to name the output file

On first use of the software, I felt that a couple of things were not quite as intuitive as they could be. After pressing "Let's Go!" we are prompted to "Please provide your merge output file name…", I was a bit confused, because the name field was already populated with text. I assumed the software had made this title, and wasn't sure why if I was being asked to replace it. Then I realised that the text was basically the title from the first file (out of three) which I was merging into one watermarked preview. If I went ahead and left that title in place and tried to author the merged file, I got an error message warning me that "one of your input files will be overwritten, please make sure all of your input files are not the same as your output files" For starters, I would suggest that the wording for that warning might be easier to understand if changed to "Warning: Chosen file name is same as one of input files, that file would be overwritten. Output file names must be different from input file names." Also, that warning disappears too quickly, I suggest that the warning stays there until the user closes it, it doesn't currently stay long enough to be able to read it.

Back now to my original point, I think the wording in the output box should read "Please provide a title for the files that will be merged" it would also be better if that field was empty by default, instead of being populated by the first input file's title.