Hi, I would like to ask a similar question again. In my layout file, I am unable to obtain the coordinate line on the uploaded second image, and I’m also unable to select multiple transistors in my design. How can I resolve this issue?

By "coordinate line", you mean the coordinates on the right side of the title bar at top? Select a device with the "i" key ("i" for "instance") and select more transistors with "Shift-i". If you unexpand the cells ("Shift-x"), then you can also select multiple cells by putting the cursor box over them and typing "a" (for "select [a]ll").

Yes, I mean the lines on the right that show the vertical and horizontal locations

I don't know what state your layout editor is in. I have not heard of either of those issues before.

when i press Shift-i, it just select other transistor not the multiple. How could i learn specifications of my lay-out state

That should all be automatic.

okay, i will continue with some shortages then, Thank you for helping!