How can I create a WBS column with both letters and numbers

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T. Lagkas
T. Lagkas
edited 11/17/23 in Smartsheet Basics

Hi, how can I create WBS column like this

A.

A.1

A1.1

A1.1.1

.....

B.

B.1.

B.1.1.

B1.1.1.

....

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