Figured I'd make a sticky topic here with some tutorials that fully explain how to use the program and add the details that make rides great. The valuable information isn't just at the top, you can find great stuff down below and on following pages as well. Though if something comes up that most people use it will be added up here
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Full Tutorial Part 1: Beginner by Turbo
0:00 NL2 and Editor introduction
8:40 Track Building
21:30 Style Separators
23:30 Simple Terraforming
26:57 Simple Custom Supporting
42:50 Detailed Custom Supporting
57:45 Test Ride
http://www.youtube.com/watch?v=CDYtEX5Rnkk
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Full Tutorial Part 2: Details By Turbo
0:00 Video Goals
1:25 Top Down Straight Sections
2:08 Track Triggers
3:17 Transfer And Storage Sections
15:42 4th Dimension Spin Controlling
18:49 Changing Rides In Sim
18:54 Plague Test Ride
19:35 Sim Control Box
19:42 Crow Test Ride
21:24 Changing Car Colors On Trains
23:41 Editing Terrain (Painting)
28:11 Making The Path
32:52 Adding Custom Scenery
43:35 Adding Trees And Shrubs
49:18 How To Make Custom Benches
49:56 More Scenery Additions
54:02 How To Make Custom Handrails
55:23 Changing Environment (time, weather, etc.)
56:11 Park Final View
56:19 Walk Mode ("Q" In Sim)
57:02 Outro
http://www.youtube.com/watch?v=ueWB_Wg82Cc
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Full Tutorial Part 3: Complex Elements And Support Scenery by Turbo
0:00 Video Intro
0:17 Loop Creation
3:20 In-Game Smoother Demonstration
11:27 Corkscrew Creation
15:05 The Power Of In-Game Smoother
23:30 Spline Selection
25:02 Heartline Roll Creation
27:08 Make Sure You Have The Right Ride Style
28:36 Cobra Roll Creation
34:09 Support Scenery Creation
34:20 My Personal Snap Preference For Support Creation
34:51 Queue (waiting line) handrail Creation
36:05 NODE PLACEMENT BUG
37:15 Copy And Paste
38:38 Decent Looking Fence Creation
44:09 Things You Can Do With What You've Learned Here
https://www.youtube.com/watch?v=_Pj4n_rUxR4
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Straight Track & Dual Station buildings By Casper
0:14 Straight Sections
0:59 Dual Stations
http://www.youtube.com/watch?v=-5Wy4c_rdFQ
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Nolimits 2 Scripting! || Part 1 || Hello World By TheCodeMaster
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If you guys have any more tutorials worth sharing please let me know and I may add them to the list. I hope these help! Happy Building!