How to take over WAVECAR or CHGCAR

[Kaikennokuro]

I am finally getting used to using aide-vasp.
However, I can't figure out how to use ISTRAT = 1, etc. to pass on the calculated results of WAVECAR or CHGCAR as the initial settings.
I want to do this in vasp.relax. do I need to set something as builder.~?
I would appreciate it if you could be more specific.

[atztogo]

I don't know well about ISTART = 1 in aiida-vasp, but something is implemented in vasp workchain:

aiida-vasp/aiida_vasp/workchains/vasp.py

Lines 348 to 364 in ace503f

	if self.ctx.restart_calc and isinstance(self.ctx.restart_calc.process_class, self._process_class):
	self.ctx.inputs.restart_folder = self.ctx.restart_calc.outputs.remote_folder
	old_parameters = AttributeDict(self.ctx.inputs.parameters).copy()
	parameters = old_parameters.copy()
	# Make sure ISTART and ICHARG is set to read the relevant objects - if they exists
	if 'istart' in parameters and 'WAVECAR' in self.ctx.last_calc_remote_objects:
	# Correct in case of istart = 0
	if parameters.istart == 0 and self.ctx.use_wavecar:
	parameters.istart = 1
	# Not using the WAVECAR - we make sure ISTART is 0
	if not self.ctx.use_wavecar:
	parameters.istart = 0
	if 'icharg' in parameters and 'CHGCAR' in self.ctx.last_calc_remote_objects:
	parameters.icharg = 1
	if parameters != old_parameters:
	self.ctx.inputs.parameters = parameters
	self.report('Enforced ISTART=1 and ICHARG=1 for restarting the calculation.')

If this works, it is nice to have documentation on it.