Each CDS has a link with the tag "/protein_id", which leads to the corresponding GenBank protein entry.

If what you want is to get all of the proteins into a single FASTA file, go to the Related Information box at right and click on Protein. This will bring up a list of all proteins in the viral genome. Select all proteins, and then open "Send to" at upper right. Choose File, Format FASTA, and Create File. This will save your file to disk.

Note that some of these CDS features include gaps (multiple N's) representing regions of this strain for which sequence is not available. These are represented as X's in the proteins.

This entire process can be automated with a few clicks using the BIRCH system. The Sequence Dataset tutorial includes automated extraction of CDS features, followed by translation of DNA to protein.

Click on FASTA in your link to get the FASTA nucleotide sequence. You can then copy and paste that sequence into SnapGene Viewer, then click on the "Show translations" button on the left. You can choose which reading frames to view, but SnapGene will color the predicted reading frame in orange.

Alternatively, you can use translate() in the Bioconductor Biostrings package in R. You can trim 1 or 2 nt to change the reading frame. You'll first need to convert your nt sequence to a DNAStringSet. You can use something like the following:

seq = DNAStringSet('[your sequence]')
aa = translate(seq, if.fuzzy.codon = 'solve')
aa

SnapGene Viewer (free)

Biostrings