# Add Interval from selection

**URL:** <https://forum.intervals.icu/t/add-interval-from-selection/130568>\
**Category:** Uncategorized\
**Created:** [1 July 2026 08:02 UTC](https://forum.intervals.icu/t/add-interval-from-selection/130568 "2026-07-01T08:02:57Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ohmax](https://forum.intervals.icu/user_avatar/forum.intervals.icu/ohmax/32/50303_2.png) [@ohmax](https://forum.intervals.icu/u/ohmax)\
**Post date:** [1 July 2026 08:02 UTC](https://forum.intervals.icu/t/add-interval-from-selection/130568/1 "2026-07-01T08:02:57Z")

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Sorry to be a pain 😉 One more thing that is not obvious to me in term of UX.

From the chart, I select an interval (created on import of an activity where I used manual laps on my Garmin). Then I can see I forgot to lap manually, so I wanted to add a new interval I clicked mouse left click and hold to right to select the pause and did “Add Interval” option at the bottom but nothing happened.

 ![image](https://forum.intervals.icu/uploads/default/original/3X/5/9/59511799602f5d271b2f8ae61ee4e8aaaa61e502.png)

 ![image](https://forum.intervals.icu/uploads/default/original/3X/9/9/99a9e432cb52abf09b680b6825e1e1412a694ecd.png)

Note also here that after I manually selected with the mouse the portion of the interval, the info in the data table below “Selected” still matches the previous interval.

Perhaps only me but if I read “Selected” and if I select a portion of the chart, then I’d expect to see the corresponding data on the table? Or do I miss something?

Note: never click on this button… not a single warning or “Are you sure?” message… All intervals I carrefully just labelled were gone in a second.

 ![image](https://forum.intervals.icu/uploads/default/original/3X/e/3/e3e3dbb7842353c3b85a97d5475df2f0d88dbcae.png)

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**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\
**Post date:** [1 July 2026 08:58 UTC](https://forum.intervals.icu/t/add-interval-from-selection/130568/2 "2026-07-01T08:58:56Z")

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I already gave you this link, but you should read the first 2 posts again. It’s all explained there, both for selections and intervals:

> [@Intervals vs Selections & Activity Zoomed view](https://forum.intervals.icu/t/intervals-vs-selections-activity-zoomed-view/82767):
>
> What is a selection? How/when to make a selection? What can it do for you? A selection in Intervals is a zoomed in view of a part of an activity. You can make a selection by click-hold-drag-release at a point in the chart. The important thing here is that you must be in the active part of the plotted area. Not above in the header part because it won’t work there. Once you do that you will get a zoomed-in view of the selected part. To zoom back out to the complete activity, left click anywhere i…

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**Author:** ![R2Tom](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r2tom/32/50144_2.png) [@R2Tom](https://forum.intervals.icu/u/R2Tom)\
**Post date:** [1 July 2026 09:18 UTC](https://forum.intervals.icu/t/add-interval-from-selection/130568/3 "2026-07-01T09:18:23Z")

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> [@ohmax](#):
>
> so I wanted to add a new interval I clicked mouse left click and hold to right to select the pause and did “Add Interval” option at the bottom but nothing happened.

You already have an interval, if you want to split this interval (=lap marker), click ‘S’ or Split. If you have no work-interval at all you can add new ones with “Add Interval” or ‘A’

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<div class="post-metadata">

**Author:** ![ohmax](https://forum.intervals.icu/user_avatar/forum.intervals.icu/ohmax/32/50303_2.png) [@ohmax](https://forum.intervals.icu/u/ohmax)\
**Post date:** [1 July 2026 12:23 UTC](https://forum.intervals.icu/t/add-interval-from-selection/130568/4 "2026-07-01T12:23:27Z")

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Thanks that worked using Split function. Is there also a simple way to “move” slightly to the left the start of an interval? If I move my mouse to the thin grey line on the top, I see the cursor changing shape but if I click and hold nothing happens?

 ![image](https://forum.intervals.icu/uploads/default/original/3X/7/0/70c1fd5a45c9be43e75c08950e39361226ea4cf1.png)

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<div class="post-metadata">

**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\
**Post date:** [1 July 2026 12:45 UTC](https://forum.intervals.icu/t/add-interval-from-selection/130568/5 "2026-07-01T12:45:27Z")

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If you move the edge of an interval to the left or right, and it is next to another interval, that will merge them. So make sure that there is interval-free room at the side you want to move it to.

Use the interval dialog to move an interval left or right per second with the L/R buttons (1)  
If you only want to move the start or the end, click on the +/- buttons under start or end to move that by one second (3)  
If you want to make the entire activity one big interval (2)  
If you want to split an existing interval in multiple same smaller ones, use the Split function which has further possibilities to split by time/distance (4)

 ![image](https://forum.intervals.icu/uploads/default/original/3X/3/1/314566507243852aae280956ee644392f103b79b.png)