possible to add "trim first minute" to chain?

I have a Chain which I apply to audio files. I want it to trim the first minute of each file. Is there a way to make a Chain do that?

Yes, but you need to add a plug-in.
Try the “Current Version” from: https://forum.audacityteam.org/t/trimtrack-plug-in/14323/1
To trim 1 minute, adjust the start time by -60 seconds (minus sixty)

Instructions for installing: http://wiki.audacityteam.org/wiki/Download_Nyquist_Plug-ins#Installing_Plug-ins

I did this, and applied a “Trim and Extend” like in the link you suggested, but something very weird happened. If I open the resulting MP3 file (I saved as MP3 from Audacity) with Quicktime on my computer, it’s perfect - it starts playing from 1 minute in, like I wanted. But if I play it in my car’s MP3 player, what I get is a minute of silence, followed by the part I wanted to hear. It’s like it didn’t crop off the first minute but just put some sort of “fast forward” tag which Quicktime is smart enough to obey but my car’s MP3 is not. What am I doing wrong??

You can check that one minute really has been chopped off by importing the file back into Audacity.

How do you do that? Are you making an MP3 CD and playing that in your car? If so, perhaps the CD player is having trouble reading the CD.

nope, no CD - I put it on a USB thumbdrive and stick it into the stereo USB slot.

See: https://forum.audacityteam.org/t/trimtrack-plug-in/14323/10

Thanks! What finally worked for me was using the Trimtrack not the TrimExtend one.