# Command Select filter by file groups **URL:** \ **Category:** Help & Support\ **Created:** [September 27, 2017, 10:53pm UTC](https://resource.dopus.com/t/command-select-filter-by-file-groups/26991 "2017-09-27T22:53:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![wowbagger](https://resource.dopus.com/user_avatar/resource.dopus.com/wowbagger/32/25880_2.png) [@wowbagger](https://resource.dopus.com/u/wowbagger)\ **Post date:** [September 27, 2017, 10:53pm UTC](https://resource.dopus.com/t/command-select-filter-by-file-groups/26991/1 "2017-09-27T22:53:52Z")
There is an missing option in the doco for the select. For this post [No "COPY CUT" command?](https://resource.dopus.com/t/no-copy-cut-command/26950/18) I wanted select all image files. I though I could use `Select "Image Files" FILTER` but that would require setting up a predefined filter. While its not documented [here](https://www.gpsoft.com.au/help/opus12/index.html#!Documents/Select.htm) you can use `Select grp:Images` . ---
**Author:** ![Leo](https://resource.dopus.com/user_avatar/resource.dopus.com/leo/32/69732_2.png) [@Leo](https://resource.dopus.com/u/Leo)\ **Post date:** [September 27, 2017, 11:02pm UTC](https://resource.dopus.com/t/command-select-filter-by-file-groups/26991/2 "2017-09-27T23:02:10Z")
That's (implicitly) using the `PATTERN` argument. (It's the default argument, so the arg name PATTERN is optional. The command is the same as `Select PATTERN=grp:Images`.) Docs for the PATTERN argument link to the [pattern matching syntax](https://www.gpsoft.com.au/help/opus12/index.html#!Documents/Pattern_Matching_Syntax.htm) which includes the `grp:...` pattern. ---
**Author:** ![wowbagger](https://resource.dopus.com/user_avatar/resource.dopus.com/wowbagger/32/25880_2.png) [@wowbagger](https://resource.dopus.com/u/wowbagger)\ **Post date:** [September 28, 2017, 12:05am UTC](https://resource.dopus.com/t/command-select-filter-by-file-groups/26991/3 "2017-09-28T00:05:53Z")
Could we add that as an example? I was a bit lost and had to guess.