This guide is specifically designed to add rules for my DCnR series mods manually/directly into Vortex plugin management file userlist.yaml.
This is the one of the files that LOOT uses to organize your plugins.

If you are looking for a generic guide on editing userlist.yaml plugin rules, I suggest going to LOOTs website directly or looking thru the forums at AFKMods.com.

Here is a rule that works specifically to place most DCnR plugins after PRP, it can be modified to place most DCnR after any plugin though.
  - name: '.+[_ ]DC(nR)?[_ ]F\-ESL\.esp'
    after:
      - BostonFPSFixAIO.esp
      - BostonFPSFixAutomatron.esp
      - PRP.esp
    group: Deep Clean and Remodel
This guide is setup in 6 basic steps to either have you overwrite or text paste update your current Vortex userlist.yaml 

These instructions assume you have installed the Commonwealth DCnR Collection via Vortex and selected the option to install the userlist.yaml to:
...\Fallout4\Data

OR you manually downloaded the optional file - userlist.yaml from the file tab

If you do not have a copy of DCnR version of userlist.yaml go to the DCnR Collection file tab and download it to proceed.

1. Navigate to Vortex's userlist.yaml

Shut down Vortex at this time

Your default copy userlist.yaml that Vortex uses is located here:
C:\Users\Username\AppData\Roaming\Vortex\fallout4\userlist.yaml

Windows Explore to the location of your userlist, if it is not there, do a file search in windows explorer at the root level of the C:\ for:
Vortex\fallout4

If there is no current userlist.yaml located there, get suspicious...seriously though you can copy the downloaded version into the directory: 
C:\Users\Username\AppData\Roaming\Vortex\fallout4\ and skip to 5. Restart Vortex

If there is userlist.yaml in the Vortex directory, you will need to edit it.

I recommend copying a backup in case things go horribly wrong in this process. If that happens you can always start over.

2. Open both Userlist.yaml files versions
Open both the Vortex userlist.yaml and the downloaded version, using a text editor. I love notepad++ myself.

Once your copy is open you will notice this kind of structure:

globals: []
plugins:
  - name: some_plugin_name_here.esp
    after:
      - Some_other_plugins_name_after_here.esp
    group: This plugins group name
  - name: The_next_plugins_name
...

3. Check your copy:

• If your copy has plugin rules, skip to 4. Cutting and Pasting.
• If it is empty of any plugin rules, close it.
• and copy the download userlist.yaml in to the Vortex directory, over-writing the Vortex copy. 
• Skip to 5. Restart Vortex