Hi Jason,
I am really sorry but unfortunately we cannot accommodate your request currently as it is beyond our support scope's policy as outlined in http://stackideas.com/support

Having said that, if you require us to perform the customization for you, you can always request for a quote from us at https://crm.stackideas.com and select "Customizations" . Our sales person would be glad to send you a quote for the customizations that you have requested.

There are a few questions we need to know about your request if you like us to provide you a quote on this customization.
1. Can you be more specific and list out which icons you would like to implement in the toolbar? For example, Easylog New Blog Post, Easyblog Quick Post, Easydiscuss Ask a Question and so on...
2. Can you also tell us the ordering you would like for the icons.
3. Explain in detail to us the css properties you would like to implement in the toolbar. Example, spacing, color etc.
P.S: In the attached screenshot, I have pointed out a few icons that are not possible to merge into one toolbar like the Subscribe to Blog icon because they involve javascript response which differs at a different web page. The settings icon is also not possible to merge because it is different for different extensions.

If I have EasyD, EasyB, Kommento etc. in the site. Can the EasySocial icon show all notifcations for all modules?

Yes, the EasySocial notifications icon can integrate with ED, EB and Komento. I have already set these alerts up for you in another thread.

Can I replace the notification button on a module toolbar e.g. EasyD with the EasySocial icon/feed so that I have only one notification feed on the site?

Unfortunately this is not possible.