Can I show and hide the product vendor?

You can show the product vendor in the Also Bought widget.

To do so, just go to Visual styles page:

and look for the section called 'Vendor', in the Visual preferences. Once there, select the option 'Show the product vendor'.

In the screenshot below, you can see the Also Bought recommendation slider when the name and vendor are shown.

By default, it would look like the image above, but there are different options to configure its style. To do so, check the following preferences:

You can edit the number of characters of the product vendor, the height of the product vendor section, the colour of the text, and if you prefer it in bold or not. You can also add additional CSS styles.