> For the complete documentation index, see [llms.txt](https://enercalc.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enercalc.com/docs/onboarding/program-overview/interface-navigation/current-calculation-tab.md).
# Current Calculation Tab
How to use the Current Calculation tab to edit a selected calculation module in ENERCALC.
After a calculation is selected for editing, the focus changes from the Project Manager to the Current Calculation tab, and the window fills with the user interface for that particular calculation module as shown below:
A calculation open for editing
Each calculation you open gets its own tab across the top, so you can move between several without closing them. The toolbar offers **Save**, **Save & Close** and **Cancel**, and the strip beside it reports the design status and the governing stress and deflection ratios.
Input is grouped into tabs down the left, and results appear on the right under **Calculations**, **2D**, **Diagram** and **3D**, each with its own sub-tabs.
For a review of using a typical calculation screen [click here](/docs/onboarding/program-overview/interface-navigation/general-calculation-screen-usa.md).
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