can I use customize line to add new column otherwise only +-*/ buttom?

[Decode-Wang]

The dataframe funcion , when i want to add new column, i can only use the following buttons ,such like column1 + column2, But my hope is to create another value with more complex such as 2column1+3column2-column3

[T-a-c-h-y-o-n]

To do this, you will need to do two separate operations, that is, first add column1 and column2 and then subtract the resulting column from the other column.

[aschonfeld]

Here's how you would do what you want

https://github.com/man-group/dtale/assets/11547371/06d023e7-a337-4be8-b3c8-a146d45d7bdc