You can easily create a gallery page in the theme with the following steps given below:

Dashboard ->Pages ->Add New

BlackRidersDocs_Image_21

Click on Add Media to create gallery.

BlackRidersDocs_Image_23

Create Gallery-> Upload Files-> Select Files

BlackRidersDocs_Image_24

 

Select images to upload in a gallery

BlackRidersDocs_Image_26

Click on Create a new gallery button

BlackRidersDocs_Image_28

Select Columns number from the option and click on Insert gallery.

BlackRidersDocs_Image_30

Select template from the list and click on Publish button

BlackRidersDocs_Image_31

Your desired gallery page is created now and it appears like this.

BlackRidersDocs_Image_33