Multi-character insert/replace mode?

[exastone]

Currently the only real replace functionality offered in helix is single-character replace.
Is there a way to replace existing text with typed text?

e.g. Say I have a table that is filled with white space. With a proper insert/replace mode I would be able to insert/replace (overwrite) the table whitespace with the below text without affecting the column dividers '|' such as what is shown in row 1; however currently the best I can do is row 2, requiring me to jump ahead and manually delete the appropriate amount of white space equal to the number of characters i've typed which is obviously not ideal.

--- row # ----------- Column 1 ----------- Column 2 ------
|---------|----------------------------|--------------------|
|--row 1--|--The quick brown fox ...---| -- jumped over... --|
|--row 2--|--The quick brown fox ...---------------------------| jumped over... |

Any suggestions?
*Note that the table been deliberately il-formatted because MD whitespace trimming