[V1] QTable: Is that possible to merge cell which has the same value

[Stanley]

Dear Quasar Team,

Take QTable syntax for example,
<q-table
row-key=“poNumber”
/>

Before version V1, if value in column row-key is duplicate, the console will throw error. However, in V1 it will not happen. This is a good progress.
poNumber | item | material
20001 1 aaa
20001 2 bbb
20002 1 aaa

Now I wanna ask is that possible to display data like below? (merge cell which has the same value)
poNumber | item | material
20001 1 aaa
           2 bbb
20002 1 aaa