How can I add a symbol combination or letter combination in the keyman touch layout

Keyman
1

Hello
How can I add a symbol combination or letter combination in the keyman touch layout?

2

It seems I can not add a ID for a combination

3

See “Key Codes” section of Keys, Virtual Keys and Virtual Character Keys

For example, U_0254_0301 would generate an open o plus a combining acute accent.

Is this what you are seeking?

Note that you’ll need to specify store(&version) "15.0" (or higher) to use more than one Unicode codepoint in a U_ key ID.