Trim command in autoCAD 2016?

Hi,

I have a PC with autoCAD 2016.

The trim commands appears to be acting differently to a newer version of autocad I had been using before on a different PC (2024)

Lets say you had 5 things sticking out anywhere, you'd just run Trim, and click them all or run a line through them (click once, move cursor, click again)

Now its very different - you have to select the object you want to trim off of or something?

Is there anyway to make 2016 the same as 2024?

Thanks