Differences in display of parameters between GNU Radio 3.7 and 3.8 - gnuradio

Question

I am porting multi-rtl to GNU Radio 3.8. I've actually done all the porting and I already have a program that works. Now only a few cosmetic changes are missing, such as new examples. When I wanted to make a new example, I realized that the block is displayed for me differently than in the picture. Here is this picture from documentation (original program):
Here is how this block is displayed for me (in my ported program):
It's even expected behavior. Here are parameters of this block (they're generated for each n in this way):
- id: sync_gain${n}
label: "Ch${n}: Sync RF Gain (dB)"
category: Synchronization
dtype: real
default: 10
hide: ${"$"}{ 'part' if nchan > ${n} else 'all' }
- id: freq${n}
label: "Ch${n}: Frequency (Hz)"
category: RF Options
dtype: real
default: 100e6
hide: ${"$"}{ 'none' if nchan > ${n} else 'all' }
- id: gain${n}
label: "Ch${n}: RF Gain (dB)"
category: RF Options
dtype: real
default: 10
hide: ${"$"}{ 'part' if nchan > ${n} else 'all' }
- id: gain_mode${n}
label: "Ch${n}: Gain Mode"
category: RF Options
dtype: bool
default: False
hide: ${"$"}{ 'part' if nchan > ${n} else 'all' }
options: [ False, True ]
option_labels: [ Manual, Automatic ]
- id: id_string${n}
label: "Ch${n}: ID string"
dtype: string
default: "${n}"
hide: ${"$"}{ 'part' if nchan > ${n} else 'all' }
The only parameter with the hide option set to none is "Ch $ {n}: Frequency (Hz)" so it's also only parameter that is displayed "outside". It's normal. However, I do not understand why the equivalent of this code in gnuradio 3.7 is displayed differently. Here's GNU Radio 3.7 code that I think is equivalent:
<param>
<name>Ch$(n): Sync RF Gain (dB)</name>
<key>sync_gain$(n)</key>
<value>10</value>
<type>real</type>
<hide>\#if \$nchan() > $n then 'part' else 'all'#</hide>
<tab>Synchronization</tab>
</param>
<param>
<name>Ch$(n): Frequency (Hz)</name>
<key>freq$(n)</key>
<value>100e6</value>
<type>real</type>
<hide>\#if \$nchan() > $n then 'none' else 'all'#</hide>
<tab>RF Options</tab>
</param>
<param>
<name>Ch$(n): RF Gain (dB)</name>
<key>gain$(n)</key>
<value>10</value>
<type>real</type>
<hide>\#if \$nchan() > $n then 'part' else 'all'#</hide>
<tab>RF Options</tab>
</param>
<param>
<name>Ch$(n): Gain Mode</name>
<key>gain_mode$(n)</key>
<value>False</value>
<type>bool</type>
<hide>\#if \$nchan() > $n then 'part' else 'all'#</hide>
<option>
<name>Manual</name>
<key>False</key>
</option>
<option>
<name>Automatic</name>
<key>True</key>
</option>
<tab>RF Options</tab>
</param>
<param>
<name>Ch$(n): ID string</name>
<key>id_string$(n)</key>
<value>"$(n)"</value>
<type>string</type>
<hide>\#if \$nchan() > $n then 'part' else 'all'#</hide>
</param>
Why are they displayed differently?

Answer 1

Why are they displayed differently?
Probably some bug in your gnuradio 3.7 version. I just tested it with gnuradio 3.7.13.5 and the displayed block is similar to your gnuradio 3.8 example.
If you want to see all parameters change 'part' to 'none'. See also https://wiki.gnuradio.org/index.php/YAML_GRC#Parameters