Just a heads up there is now a version of NMM that has ESL File support so no need to edit the plugins.txt file. You can get it here

https://forums.nexusmods.com/index.php?/topic/6086198-skse64-and-esl-support-for-nexus-mod-manager/ 


Known Issues: 

For anyone who is having issues with adjusting the Load Order with Version 0.63.17 I am finding I have the same issue. It is probably why they have not updated the main download for NMM. I actually have both versions installed ( just install this version to a new folder i.e. Nexus Mod Manager-63-17 ) with both versions configured to use the same mod folders. When I need to adjust Load Order of the ESP mods I load Ver. 0.63.14, once I have the Load Order of the ESP mods correct, I Close NMM 63.14, edit the Plugins.txt to add my ESL mods and then run this new version for adding new mods and ESL files and Launching the Game, as this one won't disable my ESL mods. 



Check out my other mods:

Caladons Personal Portable Vault 88  http://www.nexusmods.com/fallout4/mods/25738/?
Caladons Stonewall Starlight Citadel Blueprint   http://www.nexusmods.com/fallout4/mods/26296/?
Caladons Starlight Movie Screen Lightbox Wall   http://www.nexusmods.com/fallout4/mods/26408/?
Caladons Personal Portable Vault 88   http://www.nexusmods.com/fallout4/mods/25738/?
Caladons Floating Castle Conquest Blueprint    http://www.nexusmods.com/fallout4/mods/26138/?
Caladons Floating Castle Conquest Blueprint Mk 3    http://www.nexusmods.com/fallout4/mods/26170/?
Lysandra Lovely LooksMenu Preset    http://www.nexusmods.com/fallout4/mods/25915/?
Modding the Singing Settler A Guide to Custom Music and .Lip Animation    http://www.nexusmods.com/fallout4/mods/25993/?
Jetpack Sound Replacer    http://www.nexusmods.com/fallout4/mods/26295/?