When pressing F2 to look at the command line history, is the number of lines shown less than you want to see.
To set a new maximum number of lines Autocad shows in the command history dialog, you will need to send the following lisp expression:
(SETENV “CmdHistLines” “2000”)
The maximum number of lines is 2048 and the minimum is 25.
Note: this lisp exression can be added to your acad.lsp or acaddoc.lsp files so this setting is automatically set when Autocad is first launched, or when a new drawing is opened.
If you would like to see how many lines are being shown you can get the information by sending this lisp expression: