Cells inside cell?

I would like my users to select time from dropdowns so can i have 3 coro cell types inside a cell of type ed??

There is no ready excells for such type of data entering , but custom excells allow to use any HTML form as data editor.
You can check
    dhtmlx.com/docs/products/kb/inde … s&s=custom
This thread contains a sample of custom excell which uses two radio button inside the same cell, not exactly same functionality, but by using same approach you can create a 3-select editor.