How to remove/hide unnecessary scroll (and grey) bars?

[thoste]

Assume I open an empty document then at the left, bottom and right there are unnecessary grey/scroll bars.

See attached snapshot

How can I hide them?

Resp. let SynWrite show them only if necessary?

Thomas

[Alexey]

right-bottom bars: scroll bars - cannot hide them.
left bar:
In the View part of Options dialog, option "show gutter ....." exist, but they cannot hide all gutter.

CudaText can hide all gutter: by option "gutter_show":false.