Action: Insert, filenames not the same length

Hello,short question:

- many files in 1 folder, filenames have different length
- all files have filetype 'jpg'

- Action: insert date (manual input) before the ending '.jpg'

Can this be done?

Thanks.
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Solved: I found the 'Apply to name and extension' button, plus 'Add' at position n / Backwarts.
Used for adding own creation date for groups of pictures without chaning the first part of the filename.

Thanks.

This question does not seem to make any sense!
Why do you need to use Advanced Renamer to insert a date MANUALLY into a filename?
Just select the filename in Windows Explorer and type in the date!

You need to give us some further explanation.