This may or may not help. Got the advice from a kind Clan member some time ago. Thread presumably now expired.
I was asking about incorporating fade/decay into the damper pedal on string / brass sounds, as opposed to sustain at constant volume. ...
Not sure if this works for piano patches, but it might set off some ideas....
(Step 1 - 4 you have to do once for your Fantom X, the other setting are ofcourse patch-dependent. )
1- plug your pedal in port (HOLD)
2- press MENU -> System -> (tab) System Ctrl
3- Set "System Ctrl 4" source to "HOLD-1"
4- Press WRITE (red) to save these settings for the future
5- Get the Patch you want to use
6- Press Patch Edit
7- Select "Pro Edit"
8- Select (tab) MISC
9- for ALL tones, set TONE RX HOLD-1 to OFF (this disables the default hold-effect)
10- select (tab) CTRL 4 (could also use 1,2,or 3)
11- on the right, use the following settings:
12- Source: SYSCTRL 4
13- Destination 1 : TVA ENV R-TIME
14- Sense 1 : + 35 (or whatever value you require)
15- Switch 1 : ON (for all tones, but depends on the patch)
16- destination 2, 3, 4 : OFF
Some background info:
I use System Ctrl 4 in this example, but you could very well use one of the other 3 System Controls. A system-control is a mapping to a standard midi-control (like modulation or hold), which you can link to an internal patch-change (like 'release-time'). These mappings are a nice feature because usually you would need system-exclusive messages to change a patch' release-time.
A patch can be controled by 4 system-controls, for instance, modulation changes pitch, hold changes release-time, pitch-bender changes filters, and so on. It's up to you.
All 4 system-controls can control different settings, but you're free to use 2 system-controls to 'listen' to 'Hold' and let the first one change release-time and the second one attack-time. Yesterday evening I figured out this feature and I was thrilled by its potential. When I got my Fantom I was frustrated by the terrible hold-effect but by using stringsounds with a bit of release time built-in, I got over it.