How to read and configure external CO2 data?

[Ambition_hhh]

./create_newcase --case Myco2case --res f09_g16 --compset IHistClm50BgcCrop --mach myintel --compiler intel --run-unsupported

I created this case, I want the model to use my own file download of co2 (cmip6 download rcp2.6 data)：

/home/hlh/cesm/inputdata/atm/datm7/CO2/co2_AERmon_CESM2_historical_r10i1p1f1_gn_200001-201412.nc

1. I changed it in the run_run.xml file:
<entry id="DATM_CO2_TSERIES" value="none">
<type>char</type>
<valid_values>none,20tr,20tr.latbnd,rcp2.6,rcp4.5,rcp6.0,rcp8.5</valid_values>
<desc>DATM CO2 time series</desc>
</entry>

2. I changed it in the run_run.xml file:
<entry id="DATM_CLMNCEP_YR_START" value="2010">
<type>integer</type>
<desc>starting year to loop data over</desc>
</entry>
<entry id="DATM_CLMNCEP_YR_END" value="2010">
<type>integer</type>
<desc>ending year to loop data over</desc>
</entry>

3. I changed it in the run_run.xml file:
<entry id="CLM_CO2_TYPE" value="diagnostic">
<type>char</type>
<valid_values>constant,diagnostic,prognostic</valid_values>

4. I added to the user_nl_clm:
&datm
finidat = '/home/hlh/cesm/inputdata/atm/datm7/CO2/co2_AERmon_CESM2_historical_r10i1p1f1_gn_200001-201412.nc',
/

The lnd_in file is displayed as follows：

&clm_inparm
albice = 0.50,0.30
co2_type = 'diagnostic'
create_crop_landunit = .true.
dtime = 1800
fatmlndfrc = '/home/hlh/cesm/inputdata/share/domains/domain.lnd.fv0.9x1.25_gx1v6.090309.nc'
finidat = '/home/hlh/cesm/inputdata/atm/datm7/CO2/co2_AERmon_CESM2_historical_r10i1p1f1_gn_200001-201412.nc'
fsnowaging = '/home/hlh/cesm/inputdata/lnd/clm2/snicardata/snicar_drdt_bst_fit_60_c070416.nc'
fsnowoptics = '/home/hlh/cesm/inputdata/lnd/clm2/snicardata/snicar_optics_5bnd_c090915.nc'
fsurdat = '/home/hlh/cesm/inputdata/lnd/clm2/surfdata_map/surfdata_0.9x1.25_78pfts_CMIP6_simyr1850_c170824.nc'
glc_do_dynglacier = .true.
glc_snow_persistence_max_days = 0
h2osno_max = 10000.0
int_snow_max = 2000.
irrigate = .true.
maxpatch_glcmec = 10
maxpatch_pft = 79
n_melt_glcmec = 10.0d00
nlevsno = 12
nsegspc = 35
paramfile = '/home/hlh/cesm/inputdata/lnd/clm2/paramdata/clm5_params.c171117.nc'
......


Is this the right way to handle?
How can I see if the model uses the CO2 data I downloaded?
Thanks for your answer！！