How do I get this behavior from Apache?

I was using PHP integrated development server and everything worked great. Then I installed XAMPP on the same Windows computer only to find that my URLs without trailing slash are not respected in XAMPP. I DO NOT WANT ANY REDIRECTS!

I then found a partial solution, however I do not know how to apply that solution to dynamic folder names.

So I am looking to reproduce the behavior I got with the PHP development server which allowed me to load for example:
http://example.com/directory (NO TRAILING SLASH!)
(this would load http://example.com/directory/index.php)

Then I found I can do the following , which is now in my .htaccess and working for those directories

RewriteEngine On
RewriteRule ^eSCL/ScannerStatus/?$ eSCL/ScannerStatus/index.php [L]
RewriteRule ^eSCL/ScannerCapabilities/?$ eSCL/ScannerCapabilities/index.php [L]
RewriteRule ^eSCL/ScanJobs/?$ eSCL/ScanJobs/index.php [L]
RewriteRule ^eSCL/Scans/?$ eSCL/Scans/index.php [L]
RewriteRule ^eSCL/Scans/NextDocument/?$ eSCL/Scans/NextDocument/index.php [L]
# RewriteRule ^eSCL/ScanJobs/.*/?$ eSCL/ScanJobs/.*/index.php [L]
# RewriteRule ^eSCL/ScanJobs/.*/NextDocument/?$ eSCL/ScanJobs/.*/NextDocument/index.php [L]

Code (markup):

I then tried to use the last two lines (commented out now) to accommodate the dynamic folder names that are generated (.* above).

So my only remaining question is how can I make this rule apply to ALL folders and subfolders or to a folder with a dynamically generated name