Customized Data Entry Views

We have master sheets with over 100 rows and it gets very labor some to enter data at different phases of a a project. I understand that form views are a nice way to enter data but that they can only be used one entry per row. Is there a way to go back into form view at a later time and by a drop down menu of the primary column select a row that you add additional data in through form view? If not, is there a better way to customize different data entry views? For example, we may want to enter all of the information we have on a client at the time the row is created but then we want to go back in and check a box or add a date or add additional information into the other columns. How can we do that without scrolling through 100 columns?

I tried this in card view and it did not work.

Appreciate any help you can offer!

Beginner - Intermediate user of Smartsheet.