Instruction for installing the attached EpubMergeDnD (EpubMerge Drag-and-Drop) file.

SETUP:
1. It is assumed you have Calibre installed and the EpubMerge plug-in as well
2. Make a new folder, name it anything and put it anywhere
    (But these instructions assume a folder name 'EpubMergeDnD' and in the Calibre folder)
3. Go to the Calibre > Calibre Settings > plugins folder
3. Double-click to open the 'EpubMerge.zip' file and copy the 'epubmerge.py' file
4. Paste 'epubmerge.py' into the EpubMergeDnD folder.
5. Copy the full path and name of the 'epubmerge.py' file
    e.g. "C:\..{your path}..\Calibre\EpubMergeDnD\epubmerge.py"
    (Easiest: Cursor on file > Shift-right-click > Copy as path)
6. Open the attached 'EpubMergeDnD.txt' file
7. Locate the line containing "C:\Programs_Portable\Calibre\EpubMergeDnD\epubmerge.py"
    (which has my path) and replace with your path (from point 5). Keep the equal sign and everything to the left
8. Go to the Calibre > Calibre folder
9. Copy the full path and name of the 'calibre-debug.exe' file
    e.g. "C:\{..your path}..\Calibre\Calibre\calibre-debug.exe"
10. Open 'EpubMergeDnD.txt' again
11. Locate the line containing "C:\Programs_Portable\Calibre\Calibre\calibre-debug.exe"
    (which shows my path) and replace with your path (from point 9). Keep the equal sign and everything to the left
12. Save and close 'EpubMergeDnD.txt'.
13. Change the extension of EpubMergeDnD.txt to bat (EpubMergeDnD.txt > EpubMergeDnD.bat)
14. Make shortcut(s) to 'EpubMergeDnD.bat'.
    (Optional: change icon, rename shortcut)
    Maybe add underscore (_) before name so shortcut will be sorted on top in folder)
    As many as you want and anywhere handy.
    (e.g. Folders where you have epubs to merge, Desktop, Start menu, etc.)
15. This is it and you do this only once

MERGE:
20. Epubs you want to merge have to be in desired order
    (Consider: Windows sort: by date, size, reverse alpha.
    Add some extra spaces to some files, or prefix with numbers)
21. Select all epubs you want to merge
    Drag or shift-select to select all, or ctrl-pick
22. MOST IMPORTANT - Cursor must be on the file you want FIRST when dragging
23. Drag selected files onto the shortcut (see point 14)
24. BTW Copy-Paste also works (if concerned of accidentally dropping 'on the way' to drop)
25. Merged file will be placed in same folder as epubs with "~Merged" added to first dragged file

NOTES:
30. This works on Windows only
31. This program does NOT sort files before merging. Note the order of the list of dragged files:
    Merge starts with file UNDER CURSOR when dragging (this is a Windows 'feature')
    So if there are 4 files (1-4 in that order) selected and
    cursor is over 3 when dragging the merged order would be: 3, 4, 1, 2
    So drag with cursor over '1'
32. To be able to select all epubs they have to be in same folder
33. There is a maximum number of dragged files (Windows limit).
    Approx. 8000 characters total of path and filename length (path for each file!). (Maybe 100?)
34. Editing the bat file is easier to right-click > edit
    rather than change the extension to txt each time.

