grid.setMany
An effect node, provided by Rulealize.Plugin.Grid.
Form
{
"op": "grid.setMany",
"target": <state field:board>,
"coords": <expression:Sequence>,
"value": <expression>
}What it does is in that plugin's specification, which ships with the plugin and changes when it releases — read it.
Add it
dotnet add package Rulealize.Plugin.Grid