Here's one approach:
Create a Macro Group, named (for example) "Capture One Palette"
- Active only for Capture One app
- Shows/hides a pallet when:
Here's an example I use for Evernote:
EDIT: 2017-02-06 8:08 PM CT
I have now uploaded the below Macro Group and Macros.
See Evernote Table Palette Group & Macros.
###Display of Palette
##Macro Library Group Setup
Then, create one macro for each style you want, and assign a simple trigger, preferably one character (with or without a modifier key).
Each macro will use the "Select Menu" Action, set for the specific menu tree you need for the style:
##example "Select Menu" using Evernote:
##macros in the Evernote Palette Group
##example Macro
Hopefully this will get you started.
Feel free to ask any follow-up questions.