M291 Multi-line

[myfordvmb]

Is your feature request related to a problem? Please describe.

Would like the ability to have a multi-line message in M291.
Propose \n for new line.
This is to format information to user.

Describe the solution you propose.

M291 P{"Variable A="^global.VarA^\n^Variable B="^global.VarB} S2
would result in Message Dialog
Variable A=5
Variable B= 10

Describe alternatives you've considered

Tried echo but goes to console and does not prompt user.

Provide any additional context or information.

Ex. Photos, mockups, etc.

[dc42]

Another possible implementation would be for the M291 P parameter to accept an array of strings.

[chrishamm]

You can use <br> to insert line breaks when used with DWC only. M291 messages may contain HTML tags, but PanelDue probably doesn't display them correctly.