Repository: vscode
Issue: Page down and page up do not work in Jupyter notebooks
Labels: bug,polish,notebook-layout

Issue Type: <b>Bug</b>

Page down and page up in Jupyter windows doesn't work. If no cell is in edit mode, either it does nothing or jumps haphazardly between cells. Other times, it tries to scroll a ways and then seems to choke on a plot, then backs up to where it was. If a cell is in edit mode, with a text cursor in it, then no scrolling happens. I am on an Apple laptop where the page down and page up functions are accomplished with Function-downarrow and Function-uparrow.

Also, the scroll-to-top and scroll-to-bottom, Command-uparrow and Command-downarrow, do not work if a cell is in edit mode.

VS Code version: Code 1.63.0 (7db1a2b88f7557e0a43fec75b6ba7e50b3e9f77e, 2021-12-07T05:15:48.091Z)
OS version: Darwin x64 15.6.0
Restricted Mode: No

<details>
<summary>System Info</summary>

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM)2 Duo CPU     P8600  @ 2.40GHz (2 x 2400)|
|GPU Status|2d_canvas: unavailable_software<br>gpu_compositing: disabled_software<br>metal: disabled_off<br>multiple_raster_threads: disabled_off<br>oop_rasterization: disabled_off<br>opengl: disabled_off<br>rasterization: disabled_software<br>skia_renderer: disabled_off_ok<br>video_decode: disabled_software<br>webgl: unavailable_software<br>webgl2: unavailable_software|
|Load (avg)|3, 3, 3|
|Memory (System)|8.00GB (0.02GB free)|
|Process Argv||
|Screen Reader|no|
|VM|0%|
</details><details><summary>Extensions (40)</summary>

Extension|Author (truncated)|Version
---|---|---
ada|Ada|23.0.1
Bookmarks|ale|13.2.2
pascal|ale|9.4.0
pascal-formatter|ale|2.6.0
project-manager|ale|12.4.0
octave-hacking|apj|0.2.12
vscode-svgviewer|css|2.0.0
vcard|cst|1.0.1
vscode-mac-color-picker|dae|1.0.2
textpad-icon-theme|dam|1.19.21
vscode-markdownlint|Dav|0.45.0
ada-snippets|Ent|0.3.0
gc-excelviewer|Gra|4.0.45
vscode-back-forward-button|gri|0.1.6
vscode-lyx|gyt|0.0.4
latex-workshop|Jam|8.23.0
svn-scm|joh|2.15.2
language-julia|jul|1.5.8
keen-neutral-icon-theme|kee|1.0.8
octave|lea|0.1.1
eps-preview|mkv|0.3.0
python|ms-|2021.12.1559732655
jupyter|ms-|2021.11.1001550889
jupyter-keymap|ms-|1.0.0
jupyter-renderers|ms-|1.0.4
cpptools|ms-|1.7.1
cpptools-extension-pack|ms-|1.1.0
postscript|mxs|1.0.1
vscode-json-editor|nic|0.3.0
vsc-octave-debugger|pau|0.4.23
bib|phr|0.3.0
ipf|qms|1.0.1
vscode-data-preview|Ran|2.3.0
markdown-preview-enhanced|shd|0.6.1
octave|toa|0.0.3
pdf|tom|1.2.0
debug|web|0.25.1
txt-syntax|xsh|0.2.0
markdown-all-in-one|yzh|3.4.0
json|Zai|2.0.2

(3 theme extensions excluded)

</details><details>
<summary>A/B Experiments</summary>

```
vsliv368cf:30146710
vsreu685:30147344
python383:30185418
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythontb:30283811
pythonptprofiler:30281270
vsdfh931cf:30280410
vshan820:30294714
vstes263:30335439
pythondataviewer:30285071
vscod805cf:30301675
pythonvspyt200:30340761
binariesv615:30325510
bridge0708:30335490
bridge0723:30353136
vsaa593:30376534
pythonvs932:30410667
vscop804:30404766
vs360:30404995
vsrem710cf:30416617
py55gd98:30411514
vscexrecpromp3t1:30407762

```

</details>

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