Andy Garcia 

How do you want to implement it? 

1. Do you want a plugin that runs through your project and does this via a batch task as part of your project creation?
2. Do you want to automate something like filtering in an open document on these segments, copying source to target, and that's it?

For 1. you  would need to use the Trados Studio APIs which means knowing how to develop with .NET.  If you can do this I can direct you to the appropriate documentation to help you.

For 2. a simple AutoHotkey script would do it.  For that I'd recommend posting into the AutoHotkey forum with a clear explanation of what you wish to achieve:

 https://community.rws.com/product-groups/trados-portfolio/trados-studio/f/autohotkey 

For example, most usecases for this might be something like the following... I think!

• filter on these segments
• copy source to target
• confirm the segments
• lock the segments

Thank you Paul, its a simple script, the second variant, already downoladed the  AutoHotkey and now trying to work with it.

Try this:
1. Add the below AHK script to your Startup folder and run it for the first time.
2. Filter for ^[\d\W]*$ with the Use Regex box checked in Trados editor. 
3. Select all the filtered segments and press F12 (you can change f12 to anything else like f1 to f11 or a combination of other keys like ^+l for Ctrl-Shift-L for example).

#IfWinActive, ahk_exe SDLTradosStudio.exe
f12::
SendInput, {Alt}hut
Sleep 300
Send, ^l
#IfWinActive
Return