Here is a simple text file to be used in Reaper to map the MIDI Editor of Reaper with text labels of Hog Layout.
Copy the text into a text editor, save it as .txt file and load it into Reaper Midi editor.
# MIDI note name map
52 Main - Back
51 Main - Halt
50 Main - Play
49 10 - Flash
48 10 - Back
47 10 - Halt
46 10 - Play
45 10 - Choose
44 9 - Flash
43 9 - Back
42 9 - Halt
41 9 - Play
40 9 - Choose
39 8 - Flash
38 8 - Back
37 8 - Halt
36 8 - Play
35 8 - Choose
34 7 - Flash
33 7 - Back
32 7 - Halt
31 7 - Play
30 7 - Choose
29 6 - Flash
28 6 - Back
27 6 - Halt
26 6 - Play
25 6 - Choose
24 5 - Flash
23 5 - Back
22 5 - Halt
21 5 - Play
20 5 - Choose
19 4 - Flash
18 4 - Back
17 4 - Halt
16 4 - Play
15 4 - Choose
14 3 - Flash
13 3 - Back
12 3 - Halt
11 3 - Play
10 3 - Choose
9 2 - Flash
8 2 - Back
7 2 - Halt
6 2 - Play
5 2 - Choose
4 1 - Flash
3 1 - Back
2 1 - Halt
1 1 - Play
0 1 - Choose