02-21-2016, 10:45 PM
As long as you don't touch you LL and Mint configuration or run some wild permission/ownership commands on your data files you won't mess up LL and Mint 
There are many ways to skin a cat...
Here are a few:
1. on the UID/GID level - three ways with increasing intrusive changes on your current PCLOS installation:
a) You change the UID/GID of your user brian in PCLOS. This would require you to also change UID/GID for all his files on PCLOS outside of his home folder.
b) You create a new user with the desired UID/GID (1000/1000) and you're good to go.
c) You re-install the system and add the user brian with the desired UID/GID straight away. According to http://www.pclinuxos.com/forum/index.php?topic=135248.0
"You can specify the GID on the first boot of a new install while adding a user, there is a box near the bottom to tick and you can enter a custom GID"
So it depends on how much time your already spent on customization of the current installation and how comfortable you are to work through a few steps on the command line. Your choice
2. on the mount level
With a bit of work on your /etc/fstab file you could mount the desired folders via bindfs so that brian can read/write to them.
Feel free to ask more questions if you want to know more respectively I'm talking French.
If you're not afraid of CLI then I'd suggest to go with 1a).
But, it's your choice ... all ways above will skin the cat
There are many ways to skin a cat...
Here are a few:
1. on the UID/GID level - three ways with increasing intrusive changes on your current PCLOS installation:
a) You change the UID/GID of your user brian in PCLOS. This would require you to also change UID/GID for all his files on PCLOS outside of his home folder.
b) You create a new user with the desired UID/GID (1000/1000) and you're good to go.
c) You re-install the system and add the user brian with the desired UID/GID straight away. According to http://www.pclinuxos.com/forum/index.php?topic=135248.0
"You can specify the GID on the first boot of a new install while adding a user, there is a box near the bottom to tick and you can enter a custom GID"
So it depends on how much time your already spent on customization of the current installation and how comfortable you are to work through a few steps on the command line. Your choice
2. on the mount level
With a bit of work on your /etc/fstab file you could mount the desired folders via bindfs so that brian can read/write to them.
Feel free to ask more questions if you want to know more respectively I'm talking French.
If you're not afraid of CLI then I'd suggest to go with 1a).
But, it's your choice ... all ways above will skin the cat