Question
I already have 30k pictures ordered in the following format: YYYY/MM/YYYY-MM-DD. I would like to continue this format instead of going through and renaming all my folders (besides, I like this layout). Is there any way to add to the items in the date format drop down to include my own format?
Answer
Short answer: Yes you absolutely can add your own date format to the drop down list. Within your Lightroom program folder, go to the "Resources" folder and create a folder called "en." Then, create a file called "TranslatedStrings.txt."
In that file, write the following line (including the quotes):
"$$$/AgImportDialog/ShootArrangement_1/Template=%Y/%m/%Y-%m-%d"
If you're having trouble saving the file because of permissions, try creating the file on your desktop and then copying it into the "Resources\en" folder.
Longer answer: TranslatedStrings.txt is essentially a method to localize Lightroom for different languages, for example by rewriting the menu in another language. However, it also allows you to "hack" parts of Lightroom and personalize it. Adding some custom values to this to the date format dropdown menu is one option. You can also use it to customize the shortcut keys for various tools/actions in Lightroom.
The line "$$$/AgImportDialog/ShootArrangement_1/Template" specifies the value that we're replacing. You can use any number from 1 to 13 at the end of "ShootArrangement" and that will alter the position of the template in the dropdown menu.
The string at the end "%Y/%m/%Y-%m-%d" defines the actual date format. There are a number of different values you can use, and you can find a full list here. For example %b will give you the three letter abbreviation for a month.
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