Thank you for your post.
At this time, FileMaker Go does not have the ability to resize a table column/field width. The example you provide is excellent.
Please enter this suggestion into our Feature Requests web form at:
These Feature Requests entries are monitored and read by our Development and Product Management departments.
I could copy your post and paste it into the web form for you, there are a few questions asked that only you can answer.
Although your post is easy to understand, please be sure to link to the screen shot as this would help Development and Product Management see and understand the concept.