added accessing multiple enviornments documentation to the login guide

docs/logging-in.md

@@ -7,6 +7,12 @@ Test IICS uses the NetID Login QA environment, which is connected to production
 - [test](https://dm-us.informaticacloud.com/ma/sso/fu0Dw88PzqRdTYPctT73QJ)
 - [prod](https://dm-us.informaticacloud.com/ma/sso/732dcgB8WwTgRubL1mFU8R)
 
-Please see [this how-to guide](./howto.md#how-to-access-two-iics-orgsenvironments-at-the-same-time) on logging into multiple orgs at the same time.
+If you use your own sub-org, please use the links provided to you when your org was provisioned.
 
-If you use your own sub-org, please use the links provided to you when your org was provisioned.
\ No newline at end of file
+## How to access two IICS Orgs/Environments at the same time?
+[access-multiple-envs]: #how-to-access-two-iics-orgsenvironments-at-the-same-time
+It is not possible to access multiple IICS Orgs/Environments in a single browser session as login information is cached during the session. The following methods can be used if you require access to multiple Orgs/Environments:
+1. **Use multiple browsers**: Login to one Org/Environment in one browser (eg. Google Chrome), and use another browser (eg. Firefox) to login to another Org/Environment.
+1. **Private/Incognito mode**: Login to one Org/Environment in your normal browser window, and use a private/incognito browser window to login to another Org/Environment.
+
+[HOW TO: Use two IICS ORGs / Environments at same time](https://kb.informatica.com/howto/6/Pages/23/583317.aspx)