Add controls for long plot list navigation

Problem Description

Feature Request

With lots of plots, it’s slow to move far, UX would improve with more controls

What steps reproduce the problem?

1. Run code that generates 50 plots
2. Navigate plots and get frustrated

What is the expected output? What do you see instead?

It would be very nice to be able to jump farther in the plots than is currently provided. A great first step would be jump to beginning (e.g. <<) and jump to end (e.g. >>)

Paste Traceback/Error Below (if applicable)

NA

Versions

Spyder 4.1.2
Python 3.7.6 64-bit
Qt 5.9.6
PyQt5 5.9.2
Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0           :  1.3.0 (OK)
chardet >=2.0.0                :  3.0.4 (OK)
cloudpickle >=0.5.0            :  1.3.0 (OK)
diff_match_patch >=20181111    :  20181111 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.12.0 (OK)
jedi =0.15.2                   :  0.15.2 (OK)
nbconvert >=4.0                :  5.6.1 (OK)
numpydoc >=0.6.0               :  0.9.2 (OK)
paramiko >=2.4.0               :  2.7.1 (OK)
parso =0.5.2                   :  0.5.2 (OK)
pexpect >=4.4.0                :  4.8.0 (OK)
pickleshare >=0.4              :  0.7.5 (OK)
psutil >=5.3                   :  5.6.7 (OK)
pygments >=2.0                 :  2.5.2 (OK)
pylint >=0.25                  :  2.4.4 (OK)
pyls >=0.31.9;<0.32.0          :  0.31.9 (OK)
qdarkstyle >=2.8               :  2.8 (OK)
qtawesome >=0.5.7              :  0.6.1 (OK)
qtconsole >=4.6.0              :  4.6.0 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.3 (OK)
sphinx >=0.6.6                 :  2.3.1 (OK)
spyder_kernels >=1.9.0;<1.10.0 :  1.9.0 (OK)
watchdog                       :  None (OK)
zmq >=17                       :  18.1.1 (OK)

# Optional:
cython >=0.21                  :  0.29.13 (OK)
matplotlib >=2.0.0             :  2.2.3 (OK)
numpy >=1.7                    :  1.17.4 (OK)
pandas >=0.13.1                :  1.0.3 (OK)
scipy >=0.17.0                 :  1.3.3 (OK)
sympy >=0.7.3                  :  1.5.1 (OK)

[eafpres]

I think this can already be done through the switch to plots shortcut. I think that and/or clicking in plots is sufficient. Thanks for the clarifications.

[jnsebgosselin]

[…] So there would need to be an action to shift the focus to the plots list. Currently, this is NOT necessary to just scroll it–hover does the job. But hovering in the plot list when the last focus was one of the other panels and using Cmd/Ctrl + home / end moves to the top/bottom of that previous panel.

I think this can already be done through the switch to plots shortcut.