Is it possibility to show the report in a grid based on group type?

This would be pretty easy in an editable grid with a text field for the group name and a rich text list for the users.

Here a quick example a threw together:
a!gridLayout(
headerCells: {
a!gridLayoutHeaderCell(label: "Group"),
a!gridLayoutHeaderCell(label: "Members")
},
rows: {
a!gridRowLayout(
contents: {
a!textField(
value: "Group A",
readOnly: true
),
a!richTextDisplayField(
value: {
a!richTextBulletedList(
items: {"User 1", "User 2", "User 3"}
)
}
)
}
)
}
)

This would be pretty easy in an editable grid with a text field for the group name and a rich text list for the users.

Here a quick example a threw together:
a!gridLayout(
headerCells: {
a!gridLayoutHeaderCell(label: "Group"),
a!gridLayoutHeaderCell(label: "Members")
},
rows: {
a!gridRowLayout(
contents: {
a!textField(
value: "Group A",
readOnly: true
),
a!richTextDisplayField(
value: {
a!richTextBulletedList(
items: {"User 1", "User 2", "User 3"}
)
}
)
}
)
}
)