I am creating a table in my JotForm and am wondering if I have the ability to leave some columns blank where they can be written in manually?

I am not sure if I understand your query correctly. Please note that the input table field with the text boxes should be able to accept input. Do you mean to say to block some of the input fields to enter the text by the user? Please provide us with more information on your requirement so that we can guide you in the right direction.

We will wait for your response. Thank you! 

I want the table columns to be able to be input by the person completing
the forms. If I leave it blank, it deletes the column. If I enter in
______, it doesnt allow the user to input information. Does that make
sense?
Warm Wishes,
Rachel Socha
513-290-2933
BELAY
Virtual Executive Assistant Contractor
...

Unfortunately, this is not something that we currently support.

You may add an additional row to the input table.

We can also hide the column headers with injected CSS.

Ok, but is there a way for that row to be inserted with text and the others
as numbers?
Warm Wishes,
Rachel Socha
513-290-2933
BELAY
Virtual Executive Assistant Contractor
...

No, you can't control what text should go into the input field. There's no way to limit it to text or numbers only. It will accept all characters as input.

Let us know if you have any questions or if you need further assistance.