Cannot access SubSnapshot learn

[riban-bw]

Describe the bug The wiki says,

Learning to create a SubSnapShot is obscenely easy:

1. From the Control screen, bold click the snapshot button to enter MIDI control learn mode then short click the snapshot button. You will see the current list of ZS3s (initially empty) and a message: “Waiting for Program Change…”

First step (bold click snapshot button to enter MIDI control learn mode) differs from earlier statement that this is a shot click. Cannot find a combination that will access this mode.

Setup:

• HARDWARE Raspberry Pi 4 Model B Rev 1.4 Audio: ZynADAC Display: ZynScreen 3.5 (v1) Wiring: MCP23017_ZynScreen I2C: MCP23017@0x20, MCP23008@0x21, ADS1115@0x48, MCP4728@0x60
• SYSTEM Raspbian GNU/Linux 10 (buster) Build Date: 2020-09-05 Memory: 34% (646M/1872M) SD Card: 75% (21G/29G) Temperature: 55.0ºC Overclock: None USB Storage: 5% (9.7G/235G)
• MIDI Profile: default.sh Tuning: 440 Hz Receive Mode: Stage (Omni On) ZS3 Sub-SnapShots: Off MIDI to Output: Off Master Channel: off
• SOFTWARE zyncoder: testing (10bb3a0) zynthian-ui: feature/mixer-midi-learn (83255dd) zynthian-sys: testing (af767d2) zynthian-data: testing (10e1f9f) zynthian-webconf: testing (90d04eb)

[riban-bw]

Doh! I didn't have ZS3 enabled. I will tweak the wiki to correctly state the workflow and mention this gotch! (I think I may have fallen foul in the past.)