Gmail is based on Search and not Sort so here are some ways you can sort Gmail messages:

Sort by Size

• To sort your Inbox by Attachment size, go to the Search field at the top of the window and enter size:5M. Press Enter/Return.

• To sort your Inbox by filename operator, go to the Search field at the top of the window and enter filename:mov (or mpg, mpeg, avi, wmv, docx, xlsx, pptx, or pdf).

 

Sort by Subject

Only good for emails currently being viewed.

• Go to your Inbox and open your Developer Toolbox using Chrome:

            * Ctrl + Shift + I (Windows)
            * CMD + Opt + I (Macintosh)

• The Developer Tools window will open to the right of your Inbox.

 

• Copy the following command and paste it into the blank console window then press Enter/Return.

!function(){functione(e){var t,a,n,r,l=e.getElementsByTagName("td");for(n=0;n<l.length;n++){if("xY a4W"==l[n].className)for(t=l[n].getElementsByTagName("div"),r=0;r<t.length;r++)if("y6"==t[r].className&&(a=t[r].getElementsByTagName("span"),a.length))return a[0].innerHTML;if(l[n].hasAttribute("role")&&"link"==l[n].getAttribute("role"))for(t=l[n].getElementsByTagName("div"),r=0;r<t.length;r++)if("y6"==t[r].className&&(a=t[r].getElementsByTagName("span"),a.length))return a[0].innerHTML}return""}functiont(e,t){return e=e[0].toLowerCase(),t=t[0].toLowerCase(),t>e?-1:e>t?1:0}functiona(a){var n=Array.prototype.slice.call(a.getElementsByTagName("tr"),0);if(n.length){for(var r=n[0].parentNode,l=[],g=0;g<n.length;g++)l[g]=[e(n[g]),n[g]];for(l=l.sort(t),g=0;g<l.length;g++)r.appendChild(l[g][1])}}for(var n=document.getElementsByTagName("table"),r=0;r<n.length;r++)if("F cf zt"==n[r].className){a(n[r]);break}}();

• The emails should be sorted in your inbox based on the information on your screen and not the entire inbox.
• To exit the Developer Tools Console window, click the X.
• Return your window to date order, click the Older (>) button, then click the Newer (<) button.

Sort by Label

Articles can be assigned labels quite easily. On the left window under Compose you you can create labels by clicking the Create New Label link. To assign a label (e.g., Test Label) to an email,

• Click the checkbox beside the email you wish to mark, click the down arrow on the labels button, click Apply.
• You can also click, hold, and drag the email till it hovers over the label then release it.

The email will show the label in the Subject line and will continue to appear in your Inbox. To see only emails with a specific label, move your cursor to the left menu and click the label (e.g., Test Label) to see all the email.

Sort Read and Unread Mails

Hover over Inbox until you see a drop-down arrow.  Click the drop-down arrow and select the way you would like to receive your email.

 

Sort with filters 

Create any labels you may want to have for your Inbox.

• Go to Settings, then click the Filters and Blocked Addresses tab.
• Click the link Create a new filter. Enter the email address of the person or listserv you wish to filter.

• Click Create filter with this search (bottom right). Select the following:
  
  • Skip the Inbox (Archive it)
  • Apply the label: (then click the down-arrow to choose the label)
  • Also apply filter to # matching conversations

• Click Create filter.

To see the email click on the label you created (located under Compose) and you will see the email.