# Update to Multi-Nudge Projection Dialog

This technical note can be viewed in video format via this link:

{% content-ref url="/pages/PO8gkvbyaLEX3OIJkpQ0" %}
[Update to Multi-Nudge Dialog](/introduction/video-guides/how-to-videos/well-seeker-pro/project-ahead-multi-nudge-tool/update-to-multi-nudge-dialog.md)
{% endcontent-ref %}

### Background

The Multi Nudge Projection dialog has long been in place, allowing users to calculate multiple projections and then append those projections to the survey grid, so that the projections can be viewed on the plots and RTAC dialog. From v2.1.0.46, Innova has implemented changes which make the process of adding/removing a Landing Data projection simpler.

This document will help the user understand the differences between the old Multi Nudge Projection dialog and the new.

### Description

The only functional difference between the old and new Multi Nudge Projection dialogs is where the **Tie On** and **Bit** data are populated from and what data the **Append to Survey** and **Remove from survey** options adds/removes to the survey table.

### Old Logic

* The Multi Nudge Projection **Tie On** and the Landing Data **Bit** data populated from the last row in the survey table, regardless of whether that row was a survey or another projection. This could confuse the user
* In the Landing Data section the **Append to Survey** option added just the landing data projection to the survey table
* In the Landing Data section the **Remove from survey** option removed just the landing data projection from the survey table

The above points meant that in the scenario where a bit and landing projection were needed to be appended/removed from the survey table, they would have to select the **Append to Survey** / **Remove from survey** options twice.

### New Logic

* The Multi Nudge Projection **Tie On** data populates from the last survey in the survey table. Projections in the survey table will be ignored

![](/files/KBKwaXrZc9RpcxRYxbKO)

* The Landing Data **Bit** data populates from the last projection in the Multi Nudge Projection section. Data in the survey table is ignored

![](/files/xmzKRTcG8cSxFnSWPvpV)

* In the Landing Data section the **Append to Survey** option adds all the Multi Nudge Projection and Landing Data projections to the survey table
* In the Multi Nudge Projection section the **Remove from survey** option removes all of the Multi Nudge Projection and Landing Data projections from the survey table

The above changes make the projection of landing data simpler and projections can be appended/removed from the survey table with fewer mouse clicks.


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