# Navigation - two tier

**URL:** <https://forum.inductiveautomation.com/t/navigation-two-tier/36853>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [July 19, 2020, 4:36pm UTC](https://forum.inductiveautomation.com/t/navigation-two-tier/36853 "2020-07-19T16:36:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mcallister.krohne](https://avatars.discourse-cdn.com/v4/letter/m/e274bd/32.png) [@mcallister.krohne](https://forum.inductiveautomation.com/u/mcallister.krohne)\
**Post date:** [July 19, 2020, 4:36pm UTC](https://forum.inductiveautomation.com/t/navigation-two-tier/36853/1 "2020-07-19T16:36:05Z")

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Hi guys,

I dunno if I just need to a break from screen time but I am stuck.

My problem. I I trying to create a two tier tab navigation system but not exactly like the one in the training videos.

I have one tab docked left and another docked to the top. When selecting Cold Store 1 from the left dock I want the top dock to become visible so I can navigate between Section 1 and Section 2.

Error attached when I try to add .selectedTab to my expression.

 ![Capture1](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/0/e031d524ff0a4db78079902cbfe3f275ae10fa13.jpeg)  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/8/8/8890e476ac2cfc1371cc5f8448485eb805702bf2.png)

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<div class="post-metadata">

**Author:** ![mcallister.krohne](https://avatars.discourse-cdn.com/v4/letter/m/e274bd/32.png) [@mcallister.krohne](https://forum.inductiveautomation.com/u/mcallister.krohne)\
**Post date:** [July 25, 2020, 3:14pm UTC](https://forum.inductiveautomation.com/t/navigation-two-tier/36853/2 "2020-07-25T15:14:31Z")

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Never mind. I was able to trace the root of my problem.