Search field on top and doble main title

Hi, I have 3 questions:

1) I would like to add a Search to my website. If I tried to add it with BeThem modele, the field search is inserted in the middle of the page. I would like to add a search field on the right top of the main page.

https://justearte.com/

2) In portfolio pages, main title appears twices, in black and in grey, there is away to remove the grey one ? see here https://justearte.com/portfolio-item/1788-brongniart-alexandrine-emilie/

3) Tools of visual editing in wordpress. Editing directly on Wordpress pages I have a very reduced editing tools, somewhere red it could be a restriction of the Theme used. Could you confirmed BeTheme reduces editing tools of Wordpress editor?

Thank you in advance

Regards,