Wait for the next Photos release - batch changing is not yet supported.  The new version that will come with the next MacOS X El Capitan will have more features.

For the time being batch change the titles and captions in iPhoto or try out the Apple Scripts we posted in the User Tip Section.

See: Photos for Mac User Tips

For example:    Photos for Mac: Batch Changing the Titles to the Filename

Photos for Mac: Batch Change the Descriptions

Photos for Mac: Batch Change Title to Capture Date-Description-Padded Sequential Number

Batch Changes in Photos for Mac:  Change the titles to a Given String

Photos for Mac: Batch Change the Date and Time to a Fixed Date

and tell Apple your desires - the more suggestions the better the chance of them responding - https://www.apple.com/feedback/photos.html

LN

You're welcome. 

It is just a few more month until the next release. 

El Capitan is already available as a public Beta, so it will not be too long until we will see a stable release.

(https://beta.apple.com/sp/betaprogram/)

I don't use Numbers much, sorry. I think it is not possible, but I am not sure. 

Try this forum:    Numbers for Mac

Wrong forum for that

in numbers the Help says

Sort data in a table

You can sort some or all data in a table—alphabetically or by increasing or decreasing values. When you sort by column, the rows of the table rearrange accordingly.

Text in column headers and footers isn’t sorted, but values in hidden rows and hidden columns are.

 

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In "Numbers", is there a way to sort and find "duplicates"?

Are you asking about sorting the columns in a table?  In most Apple applications you can click the titles of a column and sort the column ascending or descending.  So, if you click the caption of any column in a Numbers table, the rows will be sorted by that column and you will be seeing duplicates in adjacent rows.

If you click the title/caption you will also see an option to filter for certain values in that column:

I could show all rows containing "2" and easily remove the duplicate rows.

  There should be the same in Numbers somewhere.

If it is, then it is not documented.  It would be useful.

Hello!  I was reading your article, "Batch Changes in Photos for Mac:  Change the titles to a Given String."  I attempted to replicate this however I continue to run into the error, "Syntax error: Photos got an error AppleEvent Handler Failed."   The following is the line that is highlighted for attention, "set the name to input & "-" & ntext as text".

Do you have any idea what I may be doing wrong? I copied your script exactly and keep getting the same error.   Thanks.