Nested for each

I hope this helps. 

a!columnsLayout(
  marginBelow: "NONE",
  spacing: "NONE",
  columns: {
    a!forEach(
      items: 1 + enumerate(2),
      expression: {
        a!localVariables(
          local!outerItem: fv!item,
          a!columnLayout(
            contents: {
              a!forEach(
                items: 1 + enumerate(2),
                expression: a!cardLayout(
                  style: "INFO",
                  contents: {
                    a!richTextDisplayField(
                      labelPosition: "COLLAPSED",
                      align: "CENTER",
                      value: a!richTextItem(
                        text: local!outerItem + (fv!index - 1) * 2,
                        color: "#1a1a00",
                        size: "MEDIUM"
                      ),
                      
                    )
                  },
                  height: "MEDIUM",
                  shape: "ROUNDED",
                  
                ),
                
              )
            },
            
          )
        ),
        a!columnLayout()
      }
    ),
    
  }
)

check this one out

a!localVariables(
local!number: 5,
local!row: 2,
local!remainder: local!number - quotient(local!number, local!row) * local!row,
if(
local!number<local!row,
null(),
a!columnsLayout(
marginBelow: "NONE",
spacing: "NONE",
columns: {
a!forEach(
items: 1 + enumerate(local!row),
expression: {
a!localVariables(
local!currenColumn: fv!item,
{
a!columnLayout(
contents: {
a!forEach(
items: 1 + if(
local!remainder = 0,
enumerate(quotient(local!number, local!row)),
enumerate(quotient(local!number, local!row) + 1)
),
expression: a!richTextDisplayField(
labelPosition: "COLLAPSED",
align: "CENTER",
value: if(
and(local!remainder <> 0, fv!isLast),
if(
contains(
enumerate(local!remainder) + 1,
local!currenColumn
),
index(
symmetricdifference(
enumerate(local!number) + 1,
enumerate(local!number -local!remainder) + 1
),
local!currenColumn,
null()
),
null()
),
local!currenColumn + (fv!index - 1) *local!row
),

)
)
},

),

}
),

}
),

}
)
)
)