3.30.3 Can you answer these questions?

3.30.3.1 Name and author number changes in unsrnat.bst not reflecting in bibliography
3.30.3.2 Conditional compilation with multicols nested in a \newenvironment
3.30.3.3 Error when trying to use ttf font

Can you answer these?

3.30.3.1 Name and author number changes in unsrnat.bst not reflecting in bibliography

https://tex.stackexchange.com/questions/388981/name-and-author-number-changes-in-unsrnat-bst-not-reflecting-in-bibliography

I am working on customising the unsrnat.bst file as per my requirements. I have already edited it to remove the url and doi. This works well. 
After checking different posts in the forum, I also edited  ...
 
- asked by novicegeek 1vote
3.30.3.2 Conditional compilation with multicols nested in a \newenvironment

https://tex.stackexchange.com/questions/389127/conditional-compilation-with-multicols-nested-in-a-newenvironment

I wish to include a question/solution bank at the end of the chapter. I want to be able to control its printing via a single comment/uncomment operation. The MWE is an article but my intention is to  ...
 
- asked by magguu 1vote
3.30.3.3 Error when trying to use ttf font

https://tex.stackexchange.com/questions/389047/error-when-trying-to-use-ttf-font

I installed a ttf font with Font Book, but when I try to compile a document with it using xelatex I get no pdf output and the following errors: 
kpathsea: Running mktexpk --mfmode / --bdpi 600  ...
 
- asked by Dalamar 1vote