AutoCAD LT 2023 - Trim Extend revert back to AutoCAD 2018 setting

[margaretten]

I have recently upgraded to AutoCAD LT 2023 from 2018.  The Trim and Extend commands have changed with 2023 in that now hitting T (or X - same problem) automatically selects all objects.  In order to choose individual T or X boundaries, you must select them before starting the T or X command.  Not a fan at all, since my brain has been drafting the other way for 25 years.  How do I switch back?  Also not a fan of the new fenceline for what you want T'd or X'd - you need to hold your mouse down instead of just picking the two points - even the crossing polygon is gone.  Can I revert back to the 2018 settings??  Thank you.

[ The subject line of this post has been edited to include the product name by @handjonathan ]

[user181]

After starting the TRIM command look at the command line and select O for Mode and change it to Standard. 

[imadHabash]

Hi,

There are two modes that you can use to trim objects, Quick mode and Standard mode.The TRIMEXTENDMODE system variable controls whether the TRIM command defaults to Quick or Standard behavior.

[pendean]

HELP in LT2023 explains what has changed since your 2018 use, here is that relevant section

HTH

[margaretten]

So I toggled TRIMEXTENDMODE back to 0 and it seems to work again.  Unfortunately it still considers the extension of all lines to infinity as possible edges, so I may have to trim a line a few times to get it where I want - but that is manageable.  (Unless, that is a toggle mode as well???).  Thank you very much. this was helpful.

[pendean]

@margaretten EDGEMODE variable: usage is explained in HELP, works the same way it did in 2018 for you.